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icon for Yokohama Mayoral Election Winner
Politics·Japan

Yokohama Mayoral Election Winner

icon for Yokohama Mayoral Election Winner
Politics·Japan

Yokohama Mayoral Election Winner

Atsumi Harasawa 70%

Atsushi Fukuyama 39%

Yuka Asaka 24%

Kazuma Nakatani 21%

Polymarket
NEW

Atsumi Harasawa 70%

Atsushi Fukuyama 39%

Yuka Asaka 24%

Kazuma Nakatani 21%

Polymarket
NEW
icon for Atsumi Harasawa

Atsumi Harasawa

$474 Vol.

70%

icon for Atsushi Fukuyama

Atsushi Fukuyama

$21 Vol.

39%

icon for Yuka Asaka

Yuka Asaka

$0 Vol.

24%

icon for Kazuma Nakatani

Kazuma Nakatani

$0 Vol.

21%

The next Yokohama mayoral election is scheduled to be held on October 18, 2026, to elect the mayor of Yokohama, Japan (横浜市長). The election is being held following the resignation of Mayor Takeharu Yamanaka on September 7, 2026. This market will resolve according to the candidate who becomes the next mayor of Yokohama as a result of this election. Temporary, interim, or placeholder mayors will not be considered. If the result of this election isn't known by April 30, 2027, 11:59 PM ET, this market will resolve to "Other". This market will resolve based on the result of the election, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as declared by the Yokohama City Election Administration Commission (https://www.city.yokohama.lg.jp/).Atsumi Harasawa leads the Yokohama mayoral market due to her early announcement and recommendation from the Liberal Democratic Party, positioning her as the frontrunner in the special election triggered by former mayor Takeharu Yamanaka’s resignation over confirmed power harassment. The October 18 vote follows a rapid candidate field that includes Yuka Asaka, backed by the Japanese Communist Party with pledges focused on peace, base returns, and child-rearing support; Atsushi Fukuyama, recommended by Sanseito; and Kazuma Nakatani, supported by the Constitutional Democratic Party’s Kanagawa chapter. These alignments, combined with the abbreviated campaign period after the September 7 assembly approval of the resignation, have shaped trader consensus around the LDP-backed independent while leaving room for shifts from additional endorsements or turnout dynamics in the weeks before polling.

The next Yokohama mayoral election is scheduled to be held on October 18, 2026, to elect the mayor of Yokohama, Japan (横浜市長). The election is being held following the resignation of Mayor Takeharu Yamanaka on September 7, 2026.

This market will resolve according to the candidate who becomes the next mayor of Yokohama as a result of this election.

Temporary, interim, or placeholder mayors will not be considered.

If the result of this election isn't known by April 30, 2027, 11:59 PM ET, this market will resolve to "Other".

This market will resolve based on the result of the election, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as declared by the Yokohama City Election Administration Commission (https://www.city.yokohama.lg.jp/).The next Yokohama mayoral election is scheduled to be held on October 18, 2026, to elect the mayor of Yokohama, Japan (横浜市長). The election is being held following the resignation of Mayor Takeharu Yamanaka on September 7, 2026. This market will resolve according to the candidate who becomes the next mayor of Yokohama as a result of this election. Temporary, interim, or placeholder mayors will not be considered. If the result of this election isn't known by April 30, 2027, 11:59 PM ET, this market will resolve to "Other". This market will resolve based on the result of the election, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as declared by the Yokohama City Election Administration Commission (https://www.city.yokohama.lg.jp/).
Volume
$495
End Date
Oct 18, 2026
Market Opened
Sep 23, 2026, 10:08 AM ET

Resolver

0x69c47de9d...
The next Yokohama mayoral election is scheduled to be held on October 18, 2026, to elect the mayor of Yokohama, Japan (横浜市長). The election is being held following the resignation of Mayor Takeharu Yamanaka on September 7, 2026. This market will resolve according to the candidate who becomes the next mayor of Yokohama as a result of this election. Temporary, interim, or placeholder mayors will not be considered. If the result of this election isn't known by April 30, 2027, 11:59 PM ET, this market will resolve to "Other". This market will resolve based on the result of the election, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as declared by the Yokohama City Election Administration Commission (https://www.city.yokohama.lg.jp/).Atsumi Harasawa leads the Yokohama mayoral market due to her early announcement and recommendation from the Liberal Democratic Party, positioning her as the frontrunner in the special election triggered by former mayor Takeharu Yamanaka’s resignation over confirmed power harassment. The October 18 vote follows a rapid candidate field that includes Yuka Asaka, backed by the Japanese Communist Party with pledges focused on peace, base returns, and child-rearing support; Atsushi Fukuyama, recommended by Sanseito; and Kazuma Nakatani, supported by the Constitutional Democratic Party’s Kanagawa chapter. These alignments, combined with the abbreviated campaign period after the September 7 assembly approval of the resignation, have shaped trader consensus around the LDP-backed independent while leaving room for shifts from additional endorsements or turnout dynamics in the weeks before polling.

The next Yokohama mayoral election is scheduled to be held on October 18, 2026, to elect the mayor of Yokohama, Japan (横浜市長). The election is being held following the resignation of Mayor Takeharu Yamanaka on September 7, 2026.

This market will resolve according to the candidate who becomes the next mayor of Yokohama as a result of this election.

Temporary, interim, or placeholder mayors will not be considered.

If the result of this election isn't known by April 30, 2027, 11:59 PM ET, this market will resolve to "Other".

This market will resolve based on the result of the election, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as declared by the Yokohama City Election Administration Commission (https://www.city.yokohama.lg.jp/).The next Yokohama mayoral election is scheduled to be held on October 18, 2026, to elect the mayor of Yokohama, Japan (横浜市長). The election is being held following the resignation of Mayor Takeharu Yamanaka on September 7, 2026. This market will resolve according to the candidate who becomes the next mayor of Yokohama as a result of this election. Temporary, interim, or placeholder mayors will not be considered. If the result of this election isn't known by April 30, 2027, 11:59 PM ET, this market will resolve to "Other". This market will resolve based on the result of the election, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as declared by the Yokohama City Election Administration Commission (https://www.city.yokohama.lg.jp/).
Volume
$495
End Date
Oct 18, 2026
Market Opened
Sep 23, 2026, 10:08 AM ET

Resolver

0x69c47de9d...

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Frequently Asked Questions

"Yokohama Mayoral Election Winner" is a prediction market on Polymarket with 4 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Atsumi Harasawa" at 82%, followed by "Atsushi Fukuyama" at 67%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 82¢ implies that the market collectively assigns a 82% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"Yokohama Mayoral Election Winner" is a newly created market on Polymarket, launched on Sep 23, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Yokohama Mayoral Election Winner," browse the 4 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Yokohama Mayoral Election Winner" is "Atsumi Harasawa" at 82%, meaning the market assigns a 82% chance to that outcome. The next closest outcome is "Atsushi Fukuyama" at 67%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Yokohama Mayoral Election Winner" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.