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Sports·WTA Tour

Sofia Costoulas – Jennifer Ruggeri

1d 6h
Polymarket
Aug 25·3:00 PM
S. CostoulasS. Costoulas
-
J. RuggeriJ. Ruggeri
-
$23.11 Vol.Polymarket
NEW

Moneyline

$23 Vol.

This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Jennifer Ruggeri. This market will resolve to 'Jennifer Ruggeri' if Jennifer Ruggeri advances against Sofia Costoulas. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Yes" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to "No." If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve "No." If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to "No." The primary resolution source for this market is the official 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 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to “Costoulas” if Sofia Costoulas wins the first set. It will resolve to “Ruggeri” if Jennifer Ruggeri wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official Grand Slam match statistics.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to “Costoulas” if Sofia Costoulas wins set 2. It will resolve to “Ruggeri” if Jennifer Ruggeri wins set 2. If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official Grand Slam match statistics.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under." A super tie breaker is considered as one (1) set. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 8, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Costoulas" if Sofia Costoulas wins by 2 or more sets than Jennifer Ruggeri, based on the final completed score. Otherwise, it will resolve to "Ruggeri." If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins, or a result has not been determined by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market will resolve to "Costoulas" if Sofia Costoulas wins 6.5 or more total games than Jennifer Ruggeri in the upcoming tennis match, scheduled for August 25, 2026 at 11:00AM ET. Otherwise, this market will resolve to "Ruggeri". Games won will be counted across all sets played in the match. A set decided by a tiebreak will count as one game for the winner of that tiebreak, and a match tiebreak played in place of a final set will also count as one game for its winner. If the match is canceled (not played at all), or is delayed beyond 14 days from the scheduled date without completion at 11:59 PM ET, this market will resolve 50-50. If the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 22. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 8, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 23. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 8, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 24. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 8, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 9. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 10. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.Sofia Costoulas enters the US Open qualifying first-round matchup as the higher-ranked player (around WTA 156-158, career high 134) with stronger hard-court results this season, including solid ITF and challenger performances on the surface. The Belgian has navigated recent hard-court swings with a mix of wins in qualifiers and main-draw appearances, though she has suffered straight-set losses in Warsaw and Vancouver. Jennifer Ruggeri (WTA ~209-213) arrives primarily as a clay-court specialist after strong 2026 ITF results on that surface and a Rome WTA main-draw debut, but she has limited hard-court experience ahead of her Grand Slam qualifying debut. The hard-court setting and ranking gap position Costoulas as the clear favorite in trader consensus, with Ruggeri's clay momentum offering limited carryover on the faster surface.

This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET.

This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Jennifer Ruggeri.

This market will resolve to 'Jennifer Ruggeri' if Jennifer Ruggeri advances against Sofia Costoulas.

If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50.

If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.

If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.

The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Volume
$23
End Date
Sep 1, 2026
Market Opened
Aug 23, 2026, 6:14 PM ET

Resolution Source

https://www.wtatennis.com/scores

Resolver

0x65070BE91...
This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Jennifer Ruggeri. This market will resolve to 'Jennifer Ruggeri' if Jennifer Ruggeri advances against Sofia Costoulas. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.

Beware of external links.

Frequently Asked Questions

The “Ruggeri vs. S. Costoulas” market on Polymarket lets you trade on the outcome of the WTA Tour game between the Jennifer Ruggeri and the Sofia Costoulas, scheduled for August 25, 2026 at 11:00 AM ET. The primary market is the moneyline — which team will win the game — where S. Costoulas is currently priced at 86¢ (86% implied probability) and Ruggeri at 14¢ (14%). 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 “Ruggeri vs. S. Costoulas” market has generated $23 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 “Ruggeri vs. S. Costoulas,” 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 RUGGERI at 14¢ and COSTOUL at 86¢. 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 “Ruggeri vs. S. Costoulas” show Sofia Costoulas at 86¢ (86% implied probability) and Jennifer Ruggeri at 14¢ (14%). 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 “Ruggeri vs. S. Costoulas” market resolves based on the official final score of the WTA Tour game as reported by WTA Tour’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·WTA Tour

Sofia Costoulas – Jennifer Ruggeri

1d 6h
Polymarket
Aug 25·3:00 PM
S. CostoulasS. Costoulas
-
J. RuggeriJ. Ruggeri
-
$23.11 Vol.Polymarket
NEW

Moneyline

$23 Vol.

This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Jennifer Ruggeri. This market will resolve to 'Jennifer Ruggeri' if Jennifer Ruggeri advances against Sofia Costoulas. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Yes" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to "No." If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve "No." If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to "No." The primary resolution source for this market is the official 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 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to “Costoulas” if Sofia Costoulas wins the first set. It will resolve to “Ruggeri” if Jennifer Ruggeri wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official Grand Slam match statistics.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to “Costoulas” if Sofia Costoulas wins set 2. It will resolve to “Ruggeri” if Jennifer Ruggeri wins set 2. If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled (not played at all) or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50. Resolution will be based on official Grand Slam match statistics.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under." A super tie breaker is considered as one (1) set. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 8, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Costoulas" if Sofia Costoulas wins by 2 or more sets than Jennifer Ruggeri, based on the final completed score. Otherwise, it will resolve to "Ruggeri." If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins, or a result has not been determined by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market will resolve to "Costoulas" if Sofia Costoulas wins 6.5 or more total games than Jennifer Ruggeri in the upcoming tennis match, scheduled for August 25, 2026 at 11:00AM ET. Otherwise, this market will resolve to "Ruggeri". Games won will be counted across all sets played in the match. A set decided by a tiebreak will count as one game for the winner of that tiebreak, and a match tiebreak played in place of a final set will also count as one game for its winner. If the match is canceled (not played at all), or is delayed beyond 14 days from the scheduled date without completion at 11:59 PM ET, this market will resolve 50-50. If the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 22. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 8, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 23. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 8, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 24. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 8, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. The primary resolution source for this market will be official Grand Slam statistics; however, a consensus of credible reporting may also be used.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 9. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 10. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to "Under." Any tiebreak in set 2 counts as one (1) game toward the total. If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50. Resolution will be based on official Grand Slam results.Sofia Costoulas enters the US Open qualifying first-round matchup as the higher-ranked player (around WTA 156-158, career high 134) with stronger hard-court results this season, including solid ITF and challenger performances on the surface. The Belgian has navigated recent hard-court swings with a mix of wins in qualifiers and main-draw appearances, though she has suffered straight-set losses in Warsaw and Vancouver. Jennifer Ruggeri (WTA ~209-213) arrives primarily as a clay-court specialist after strong 2026 ITF results on that surface and a Rome WTA main-draw debut, but she has limited hard-court experience ahead of her Grand Slam qualifying debut. The hard-court setting and ranking gap position Costoulas as the clear favorite in trader consensus, with Ruggeri's clay momentum offering limited carryover on the faster surface.

This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET.

This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Jennifer Ruggeri.

This market will resolve to 'Jennifer Ruggeri' if Jennifer Ruggeri advances against Sofia Costoulas.

If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50.

If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.

If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.

The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Volume
$23
End Date
Sep 1, 2026
Market Opened
Aug 23, 2026, 6:14 PM ET

Resolution Source

https://www.wtatennis.com/scores

Resolver

0x65070BE91...
This market refers to the tennis match between Sofia Costoulas and Jennifer Ruggeri in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Jennifer Ruggeri. This market will resolve to 'Jennifer Ruggeri' if Jennifer Ruggeri advances against Sofia Costoulas. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.

Beware of external links.

Frequently Asked Questions

The “Ruggeri vs. S. Costoulas” market on Polymarket lets you trade on the outcome of the WTA Tour game between the Jennifer Ruggeri and the Sofia Costoulas, scheduled for August 25, 2026 at 11:00 AM ET. The primary market is the moneyline — which team will win the game — where S. Costoulas is currently priced at 86¢ (86% implied probability) and Ruggeri at 14¢ (14%). 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 “Ruggeri vs. S. Costoulas” market has generated $23 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 “Ruggeri vs. S. Costoulas,” 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 RUGGERI at 14¢ and COSTOUL at 86¢. 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 “Ruggeri vs. S. Costoulas” show Sofia Costoulas at 86¢ (86% implied probability) and Jennifer Ruggeri at 14¢ (14%). 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 “Ruggeri vs. S. Costoulas” market resolves based on the official final score of the WTA Tour game as reported by WTA Tour’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.