TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 22, 3:12 AM EST
Polymarket
This market refers to the tennis match between Natsumi Kawaguchi and Kayo Nishimura in the W50 Nanao, Main Draw, originally scheduled for September 21, 2026 at 11:00PM ET. This market will resolve to 'Natsumi Kawaguchi' if Natsumi Kawaguchi advances against Kayo Nishimura. This market will resolve to 'Kayo Nishimura' if Kayo Nishimura advances against Natsumi Kawaguchi. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 5, 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 Natsumi Kawaguchi and Kayo Nishimura in the W50 Nanao, Main Draw, originally scheduled for September 21, 2026 at 11:00PM ET. This market will resolve to 'Natsumi Kawaguchi' if Natsumi Kawaguchi advances against Kayo Nishimura. This market will resolve to 'Kayo Nishimura' if Kayo Nishimura advances against Natsumi Kawaguchi. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 5, 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 the wisdom of the crowd, potentially differing from those set by sportsbooks. Sportsbooks establish initial lines based on statistical models and expert opinions, aiming to balance action on both sides. This market, however, allows individuals to trade based on their own insights, leading to odds that may diverge from sportsbook offerings as new information emerges or public sentiment shifts. It's common to see prediction markets incorporate information more quickly than traditional betting venues, especially in response to breaking news or late-developing trends.
On Polymarket, this market is priced through a continuous trading mechanism where traders buy and sell shares representing each possible outcome. The price of each share directly reflects the probability of that outcome occurring, as perceived by the market participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and exchange shares, the prices adjust to reflect the collective assessment of the event's likelihood. This dynamic pricing ensures that the market odds continuously evolve based on the latest information and sentiment.
This market resolves around Sep 29, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the W50 Nanao match between Natsumi Kawaguchi and Kayo Nishimura. The platform will identify the winner according to established tournament rules and publicly available records. 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 trading activity in this market. Any news regarding player form, injuries, or changes in coaching strategies could significantly shift the odds. Unexpected announcements about match conditions or venue changes could also impact the market. Furthermore, broader trends in player performance within the W50 Nanao tour, or even shifts in public perception based on social media or expert analysis, could all contribute to price movements. Increased trading volume closer to Sep 29, 2026 is also typical as traders refine their predictions.