TOTAL VOLUME:
$154.3b
24H VOL:
$228,458,490
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2,984,028,936
OPEN INTEREST:
$1,879,276,037
410,833
Markets across
40,345
events
MATCHED EVENTS:
4,363
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 17, 5:26 AM EST
Polymarket
This market refers to the tennis match between Mei Yamaguchi and Sofia Kenin in the Japan Women's Open, Qualification, originally scheduled for October 17, 2026 at 2:00AM ET. This market will resolve to 'Mei Yamaguchi' if Mei Yamaguchi advances against Sofia Kenin. This market will resolve to 'Sofia Kenin' if Sofia Kenin advances against Mei Yamaguchi. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 31, 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 Mei Yamaguchi and Sofia Kenin in the Japan Women's Open, Qualification, originally scheduled for October 17, 2026 at 2:00AM ET. This market will resolve to 'Mei Yamaguchi' if Mei Yamaguchi advances against Sofia Kenin. This market will resolve to 'Sofia Kenin' if Sofia Kenin advances against Mei Yamaguchi. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 31, 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.
Prediction market odds often reflect the collective wisdom of a diverse group of traders, potentially offering a different perspective than traditional sportsbooks. Sportsbooks set their odds based on statistical models and expert analysis, while this market is driven by individuals willing to put their capital behind their beliefs. Discrepancies can arise due to differing information, biases, or simply varying interpretations of the same data. It’s common to see prediction markets move faster than sportsbooks to incorporate new information, though this isn't always the case.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome of the Yamaguchi vs Kenin match. The price of these shares fluctuates based on supply and demand, reflecting the collective probability assigned to each outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The closer we get to the event, the more volatile the price may become as new information emerges and traders adjust their positions. The current implied probability of a particular outcome is derived from the share price.
This market resolves around Oct 24, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result of the Mei Yamaguchi vs Sofia Kenin qualification match in the Japan Women's Open. The platform will verify the result against publicly available and trusted sources to determine which outcome is the winner. Traders will then be able to claim their winnings based on the final result.
Several factors could influence the price of this market before the Oct 24, 2026 resolution date. Any news regarding player injuries, changes in form, or even weather conditions impacting the match could shift trader sentiment. Unexpected results in other matches involving these players could also have an effect. Furthermore, large trades by influential participants on Polymarket could create short-term price movements. Monitoring these factors will be key to understanding how this market evolves.