TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 22, 11:15 PM EST
Polymarket
This market refers to the tennis match between Gaeul Jang and Sera Nishimoto in the ITF Women Sapporo, originally scheduled for June 15, 2026 at 11:15PM ET. This market will resolve to 'Gaeul Jang' if Gaeul Jang advances against Sera Nishimoto. This market will resolve to 'Sera Nishimoto' if Sera Nishimoto advances against Gaeul Jang. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 Gaeul Jang and Sera Nishimoto in the ITF Women Sapporo, originally scheduled for June 15, 2026 at 11:15PM ET. This market will resolve to 'Gaeul Jang' if Gaeul Jang advances against Sera Nishimoto. This market will resolve to 'Sera Nishimoto' if Sera Nishimoto advances against Gaeul Jang. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 diverge from traditional sportsbook lines because they reflect real-time trader positioning rather than fixed bookmaker spreads. Sportsbooks typically adjust odds to balance liability, while this market prices outcomes based on collective belief among participants. Comparing the two can reveal where professional bettors and casual traders disagree, sometimes highlighting undervalued or overvalued outcomes relative to conventional sports betting markets.
On Polymarket, traders set prices by buying and selling outcome shares in an automated market maker system. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each share reflects the aggregate probability assigned by the market; if most traders expect one player to win, that outcome's share price rises while the alternative falls. Liquidity and trading volume directly influence how quickly prices adjust to new information, so periods of high activity typically yield tighter spreads and more efficient pricing.
This market resolves around Jun 23, 2026, once the tennis match concludes and the result is verified against credible public sources. The outcome is determined by the official match result—which player defeats the other in the ITF Sapporo event. No ambiguity exists in tennis match outcomes, making resolution straightforward and typically swift after the final point is played.
Market prices may shift based on recent player form, injury reports, head-to-head records, and court conditions at the venue. Betting activity from informed traders can signal confidence shifts before the match begins. Weather forecasts, last-minute lineup changes, or notable training updates may also influence trader positioning. As the match date approaches, increased media coverage and expert commentary often drive volatility in this market.