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Sports·MLB

Tampa Bay Rays – Seattle Mariners

9h 50m 51s
Polymarket
Rays
Rays
8:10 PMAugust 9
Mariners
Mariners
$16.17K Vol.Polymarket

Combos

Mega diamond
First five focus
Chalk line

Moneyline

$16.1K Vol.

Spreads

$0 Vol.

Totals

$0 Vol.

Will there be a run in the first inning?

$73 Vol.

Extra Innings

$0 Vol.

In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays is winning the game at the conclusion of the 5th inning. This market will resolve to "Seattle Mariners" if the Seattle Mariners is winning the game at the conclusion of the 5th inning. If the game is tied at the conclusion of the 5th inning, this market will resolve to "Draw". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game by 2 or more runs. Otherwise, this market will resolve to "Seattle Mariners". If the game ends in a tie, this market will resolve to "Seattle Mariners". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game by 3 or more runs. Otherwise, this market will resolve to "Tampa Bay Rays". If the game ends in a tie, this market will resolve to "Tampa Bay Rays". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game by 2 or more runs. Otherwise, this market will resolve to "Tampa Bay Rays". If the game ends in a tie, this market will resolve to "Tampa Bay Rays". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game by 3 or more runs. Otherwise, this market will resolve to "Seattle Mariners". If the game ends in a tie, this market will resolve to "Seattle Mariners". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 9 or more runs in this game. If the combined total is less than 9, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 8 or more runs in this game. If the combined total is less than 8, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 10 or more runs in this game. If the combined total is less than 10, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Yes" if at least one run is scored in the 1st inning by either the Tampa Bay Rays or Seattle Mariners. This market will resolve to "No" if no runs are scored in the 1st inning by either team. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays is winning the game by 2 or more runs at the conclusion of the 5th inning. Otherwise, this market will resolve to "Seattle Mariners". If the game is tied at the conclusion of the 5th inning, this market will resolve to "Seattle Mariners". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners is winning the game by 2 or more runs at the conclusion of the 5th inning. Otherwise, this market will resolve to "Tampa Bay Rays". If the game is tied at the conclusion of the 5th inning, this market will resolve to "Tampa Bay Rays". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 3 or more runs by the conclusion of the 5th inning. If the combined total is less than 3, this market will resolve to "Under". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 4 or more runs by the conclusion of the 5th inning. If the combined total is less than 4, this market will resolve to "Under". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 5 or more runs by the conclusion of the 5th inning. If the combined total is less than 5, this market will resolve to "Under". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 6 or more runs by the conclusion of the 5th inning. If the combined total is less than 6, this market will resolve to "Under". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 7 or more runs by the conclusion of the 5th inning. If the combined total is less than 7, this market will resolve to "Under". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Yes" if the game goes to extra innings. This market will resolve to "No" if the game is completed without going to extra innings. For the purposes of this market, a game goes to extra innings if play begins in any inning after the scheduled regulation innings for that game, such as the 10th inning in a standard 9-inning MLB game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. If the game ends in a tie before extra innings are played, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.The AL East-leading Rays (69-46) enter the series with strong momentum after winning five of six and taking the opener 2-1 behind Drew Rasmussen’s seven scoreless innings. Tampa Bay’s rotation has kept runs down while the offense has shown enough power to secure narrow victories on the road. The Mariners (56-61) have dropped seven of their last ten, sit 2.5 games out of the final AL wild-card spot, and face multiple roster challenges including the absence of outfielder Luke Raley and shortstop J.P. Crawford’s uncertain return timeline. Seattle starts at home in T-Mobile Park but has scored one run or fewer in several recent contests, leaving the implied probabilities reflecting the Rays’ superior record, recent form, and head-to-head pitching edge as the primary drivers of trader sentiment.

In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10PM ET:

This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game.

This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game.

If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.

The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Volume
$16,173
End Date
Aug 16, 2026
Market Opened
Aug 4, 2026, 9:01 AM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.

Beware of external links.

Frequently Asked Questions

The “Rays vs. Mariners” market on Polymarket lets you trade on the outcome of the MLB game between the Tampa Bay Rays and the Seattle Mariners, scheduled for August 9, 2026 at 4:10 PM ET. The primary market is the moneyline — which team will win the game — where Mariners is currently priced at 53¢ (53% implied probability) and Rays at 48¢ (48%). Beyond the moneyline, sports markets on Polymarket may feature spreads, totals (over/under), and player props, giving you multiple ways to trade on this game. Prices reflect real-time crowd-sourced probabilities. Shares in the correct outcome pay out $1 each when the market resolves after the game ends.

As of now, the “Rays vs. Mariners” market has generated $16.2K in total trading volume across all market types (moneyline, spreads, totals, and player props). This volume reflects active engagement from the Polymarket trading community, and a deeper pool of traders generally means more informative, reliable odds. You can track live price movements and trade on any market directly on this page.

To trade on “Rays vs. Mariners,” start by choosing the market type you want to trade: Moneyline (which team wins), Spreads (margin of victory), Totals (combined score over/under), or Player Props (individual player stat lines). Each market shows the current price for each side — for example, the moneyline shows TB at 48¢ and SEA at 53¢. Select the side you want to trade, choose Buy to take a position or Sell to close an existing one, enter your amount, and click Trade. If your chosen side is correct when the game ends and the market resolves, your shares pay out $1 each. If it’s incorrect, they pay out $0. You can also sell your shares at any time before the game ends to lock in a profit or cut a loss.

The current moneyline odds for “Rays vs. Mariners” show Seattle Mariners at 53¢ (53% implied probability) and Tampa Bay Rays at 48¢ (48%). All odds update in real-time as traders buy and sell shares, reflecting the latest collective view of how this game will play out. Check back frequently or bookmark this page to follow how the odds shift as game time approaches.

The “Rays vs. Mariners” market resolves based on the official final score of the MLB game as reported by MLB’s official results, including overtime if applicable. Moneyline markets resolve to the team that wins the game. Spread markets resolve based on the final margin of victory relative to the posted line. Totals (over/under) markets resolve based on the combined final score of both teams. Player prop markets resolve based on official box score statistics. If the game is postponed or canceled, the market resolution rules (available in the Rules section on this page) specify how that scenario is handled. We recommend reviewing the full resolution criteria before trading.
Sports·MLB

Tampa Bay Rays – Seattle Mariners

9h 50m 51s
Polymarket
Rays
Rays
8:10 PMAugust 9
Mariners
Mariners
$16.17K Vol.Polymarket

Combos

Mega diamond
First five focus
Chalk line

Moneyline

$16.1K Vol.

Spreads

$0 Vol.

Totals

$0 Vol.

Will there be a run in the first inning?

$73 Vol.

Extra Innings

$0 Vol.

In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays is winning the game at the conclusion of the 5th inning. This market will resolve to "Seattle Mariners" if the Seattle Mariners is winning the game at the conclusion of the 5th inning. If the game is tied at the conclusion of the 5th inning, this market will resolve to "Draw". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game by 2 or more runs. Otherwise, this market will resolve to "Seattle Mariners". If the game ends in a tie, this market will resolve to "Seattle Mariners". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game by 3 or more runs. Otherwise, this market will resolve to "Tampa Bay Rays". If the game ends in a tie, this market will resolve to "Tampa Bay Rays". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game by 2 or more runs. Otherwise, this market will resolve to "Tampa Bay Rays". If the game ends in a tie, this market will resolve to "Tampa Bay Rays". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game by 3 or more runs. Otherwise, this market will resolve to "Seattle Mariners". If the game ends in a tie, this market will resolve to "Seattle Mariners". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 9 or more runs in this game. If the combined total is less than 9, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 8 or more runs in this game. If the combined total is less than 8, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 10 or more runs in this game. If the combined total is less than 10, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Yes" if at least one run is scored in the 1st inning by either the Tampa Bay Rays or Seattle Mariners. This market will resolve to "No" if no runs are scored in the 1st inning by either team. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays is winning the game by 2 or more runs at the conclusion of the 5th inning. Otherwise, this market will resolve to "Seattle Mariners". If the game is tied at the conclusion of the 5th inning, this market will resolve to "Seattle Mariners". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners is winning the game by 2 or more runs at the conclusion of the 5th inning. Otherwise, this market will resolve to "Tampa Bay Rays". If the game is tied at the conclusion of the 5th inning, this market will resolve to "Tampa Bay Rays". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 3 or more runs by the conclusion of the 5th inning. If the combined total is less than 3, this market will resolve to "Under". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 4 or more runs by the conclusion of the 5th inning. If the combined total is less than 4, this market will resolve to "Under". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 5 or more runs by the conclusion of the 5th inning. If the combined total is less than 5, this market will resolve to "Under". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 6 or more runs by the conclusion of the 5th inning. If the combined total is less than 6, this market will resolve to "Under". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Over" if the Tampa Bay Rays and Seattle Mariners combine to score 7 or more runs by the conclusion of the 5th inning. If the combined total is less than 7, this market will resolve to "Under". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10 PM ET: This market will resolve to "Yes" if the game goes to extra innings. This market will resolve to "No" if the game is completed without going to extra innings. For the purposes of this market, a game goes to extra innings if play begins in any inning after the scheduled regulation innings for that game, such as the 10th inning in a standard 9-inning MLB game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. If the game ends in a tie before extra innings are played, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.The AL East-leading Rays (69-46) enter the series with strong momentum after winning five of six and taking the opener 2-1 behind Drew Rasmussen’s seven scoreless innings. Tampa Bay’s rotation has kept runs down while the offense has shown enough power to secure narrow victories on the road. The Mariners (56-61) have dropped seven of their last ten, sit 2.5 games out of the final AL wild-card spot, and face multiple roster challenges including the absence of outfielder Luke Raley and shortstop J.P. Crawford’s uncertain return timeline. Seattle starts at home in T-Mobile Park but has scored one run or fewer in several recent contests, leaving the implied probabilities reflecting the Rays’ superior record, recent form, and head-to-head pitching edge as the primary drivers of trader sentiment.

In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10PM ET:

This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game.

This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game.

If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.

The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Volume
$16,173
End Date
Aug 16, 2026
Market Opened
Aug 4, 2026, 9:01 AM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Tampa Bay Rays and Seattle Mariners, scheduled for August 9 at 4:10PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.

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Frequently Asked Questions

The “Rays vs. Mariners” market on Polymarket lets you trade on the outcome of the MLB game between the Tampa Bay Rays and the Seattle Mariners, scheduled for August 9, 2026 at 4:10 PM ET. The primary market is the moneyline — which team will win the game — where Mariners is currently priced at 53¢ (53% implied probability) and Rays at 48¢ (48%). Beyond the moneyline, sports markets on Polymarket may feature spreads, totals (over/under), and player props, giving you multiple ways to trade on this game. Prices reflect real-time crowd-sourced probabilities. Shares in the correct outcome pay out $1 each when the market resolves after the game ends.

As of now, the “Rays vs. Mariners” market has generated $16.2K in total trading volume across all market types (moneyline, spreads, totals, and player props). This volume reflects active engagement from the Polymarket trading community, and a deeper pool of traders generally means more informative, reliable odds. You can track live price movements and trade on any market directly on this page.

To trade on “Rays vs. Mariners,” start by choosing the market type you want to trade: Moneyline (which team wins), Spreads (margin of victory), Totals (combined score over/under), or Player Props (individual player stat lines). Each market shows the current price for each side — for example, the moneyline shows TB at 48¢ and SEA at 53¢. Select the side you want to trade, choose Buy to take a position or Sell to close an existing one, enter your amount, and click Trade. If your chosen side is correct when the game ends and the market resolves, your shares pay out $1 each. If it’s incorrect, they pay out $0. You can also sell your shares at any time before the game ends to lock in a profit or cut a loss.

The current moneyline odds for “Rays vs. Mariners” show Seattle Mariners at 53¢ (53% implied probability) and Tampa Bay Rays at 48¢ (48%). All odds update in real-time as traders buy and sell shares, reflecting the latest collective view of how this game will play out. Check back frequently or bookmark this page to follow how the odds shift as game time approaches.

The “Rays vs. Mariners” market resolves based on the official final score of the MLB game as reported by MLB’s official results, including overtime if applicable. Moneyline markets resolve to the team that wins the game. Spread markets resolve based on the final margin of victory relative to the posted line. Totals (over/under) markets resolve based on the combined final score of both teams. Player prop markets resolve based on official box score statistics. If the game is postponed or canceled, the market resolution rules (available in the Rules section on this page) specify how that scenario is handled. We recommend reviewing the full resolution criteria before trading.