TOTAL VOLUME:
$134.2b
24H VOL:
$143,246,370
24H TRANSACTIONS:
2,403,290,006
OPEN INTEREST:
$1,452,035,386
405,032
Markets across
30,543
events
MATCHED EVENTS:
2,690
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 10, 12:37 AM EST
Polymarket
This market refers to the tennis match between Kisa Yoshioka and Rira Kosaka in the W15 Yeongwol, Main Draw, originally scheduled for September 9, 2026 at 9:00PM ET. This market will resolve to 'Kisa Yoshioka' if Kisa Yoshioka advances against Rira Kosaka. This market will resolve to 'Rira Kosaka' if Rira Kosaka advances against Kisa Yoshioka. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 23, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Kisa Yoshioka and Rira Kosaka in the W15 Yeongwol, Main Draw, originally scheduled for September 9, 2026 at 9:00PM ET. This market will resolve to 'Kisa Yoshioka' if Kisa Yoshioka advances against Rira Kosaka. This market will resolve to 'Rira Kosaka' if Rira Kosaka advances against Kisa Yoshioka. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 23, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Prediction market odds often reflect a wisdom-of-the-crowd perspective, potentially differing from those set by sportsbooks. Sportsbooks establish initial lines based on their own analysis and aim to balance action on both sides, while this market relies on the collective insights of traders. If a significant discrepancy exists between prediction market probabilities and sportsbook odds, it could indicate that the market believes the sportsbook has mispriced the event, or that new information hasn't yet been fully incorporated into the sportsbook's lines. It's a fascinating comparison of different forecasting methods.
This market resolves around Sep 17, 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 W15 Yeongwol match between Kisa Yoshioka and Rira Kosaka. The platform will verify the outcome against publicly available sources to determine which outcome corresponds to the actual result of the competition. Traders holding shares in the winning outcome will be entitled to a payout, while those holding shares in losing outcomes will not.
Several factors could influence the trading activity and price movements in this market. Any news regarding the players' form, potential injuries, or changes in their training regimens could shift trader sentiment. Unexpected announcements about the match conditions, such as weather forecasts or court surface changes, could also play a role. Furthermore, significant betting activity on sportsbooks or shifts in public opinion, as reflected in polls or social media, might prompt traders to reassess their positions and adjust their forecasts for the Yoshioka vs Kosaka match.