Prices for Yokohama Mayoral Election on Polymarket. A price of 41¢ means traders on that platform price the outcome at about 41%. It is a market price, not a forecast by PolyKal.
Independent research, not affiliated with Polymarket or Kalshi. Not trading advice. PolyKal stops updating prices before the first polls open and does not report election results.
| Option | PPolymarket |
|---|---|
| Yuka Asaka | 5.0¢ |
| Atsushi Fukuyama | 5.0¢ |
| Atsumi Harasawa | 57.0¢ |
| Kazuma Nakatani | 14.5¢ |
| Other | — |
Only listed on Polymarket.
Official rule text
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/).
PolyKal stops updating prices before the first polls open and does not report election results. Prices use the same method as the Midterms pages: Polymarket shows the market's displayed Yes price. Kalshi shows the midpoint of the highest Yes bid and the lowest Yes ask when they are within 8¢ of each other, and otherwise the highest Yes bid. Options with no Yes bid show —.
Available from 16 October 2026.
Available from 24 November 2026. Bid, ask, spread, order book depth and open interest for each option.
Available from 24 November 2026. Notes on large price moves, with the facts reported in the same period.
Available from 20 October 2026. One row per option, per day, Polymarket prices only (CSV).
Each platform resolves its market on the official result named in its own rules. The rule text is quoted on this page.
No. This election is only listed on Polymarket right now, so the page shows Polymarket prices and rules without a cross-platform comparison.
Every priced option in the market is listed in alphabetical order. The list follows the market, not an official candidate list.
No. PolyKal stops updating prices before the first polls open and keeps the last pre-election prices as a snapshot. It does not report election results.
Every 15 minutes until prices stop updating before the vote.
Prices for Yokohama Mayoral Election on Polymarket. A price of 41¢ means traders on that platform price the outcome at about 41%. It is a market price, not a forecast by PolyKal.
Independent research, not affiliated with Polymarket or Kalshi. Not trading advice. PolyKal stops updating prices before the first polls open and does not report election results.
| Option | PPolymarket |
|---|---|
| Yuka Asaka | 5.0¢ |
| Atsushi Fukuyama | 5.0¢ |
| Atsumi Harasawa | 57.0¢ |
| Kazuma Nakatani | 14.5¢ |
| Other | — |
Only listed on Polymarket.
Official rule text
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/).
PolyKal stops updating prices before the first polls open and does not report election results. Prices use the same method as the Midterms pages: Polymarket shows the market's displayed Yes price. Kalshi shows the midpoint of the highest Yes bid and the lowest Yes ask when they are within 8¢ of each other, and otherwise the highest Yes bid. Options with no Yes bid show —.
Available from 16 October 2026.
Available from 24 November 2026. Bid, ask, spread, order book depth and open interest for each option.
Available from 24 November 2026. Notes on large price moves, with the facts reported in the same period.
Available from 20 October 2026. One row per option, per day, Polymarket prices only (CSV).
Each platform resolves its market on the official result named in its own rules. The rule text is quoted on this page.
No. This election is only listed on Polymarket right now, so the page shows Polymarket prices and rules without a cross-platform comparison.
Every priced option in the market is listed in alphabetical order. The list follows the market, not an official candidate list.
No. PolyKal stops updating prices before the first polls open and keeps the last pre-election prices as a snapshot. It does not report election results.
Every 15 minutes until prices stop updating before the vote.