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: Jul 15, 11:00 PM EST
Polymarket
This market refers to the tennis match between Seo Yun Choi and Ikumi Yamazaki in the ITF Women Luan, originally scheduled for July 8, 2026 at 11:00PM ET. This market will resolve to 'Seo Yun Choi' if Seo Yun Choi advances against Ikumi Yamazaki. This market will resolve to 'Ikumi Yamazaki' if Ikumi Yamazaki advances against Seo Yun Choi. 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 Seo Yun Choi and Ikumi Yamazaki in the ITF Women Luan, originally scheduled for July 8, 2026 at 11:00PM ET. This market will resolve to 'Seo Yun Choi' if Seo Yun Choi advances against Ikumi Yamazaki. This market will resolve to 'Ikumi Yamazaki' if Ikumi Yamazaki advances against Seo Yun Choi. 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 and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets like this one are driven by traders seeking to profit from accurate forecasts. Comparing this market's implied probability to major sportsbook lines can reveal where professional bettors and retail traders disagree. Significant gaps may signal mispricing or highlight uncertainty that one venue hasn't fully captured.
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 collective belief about the likelihood of that outcome occurring. As new information emerges or sentiment shifts, traders adjust their positions, moving the price up or down. This continuous repricing mechanism ensures the market stays responsive to developments leading up to the match.
This market resolves around Jul 16, 2026, once the match concludes and the result is verified against credible public sources. The outcome will reflect which player wins the ITF Women's Luan event match. Until that point, traders can continue to adjust positions based on player form, court conditions, injury reports, and other factors that might influence the result. Resolution occurs automatically once the event is confirmed as completed.
Several catalysts could shift odds before the match takes place. Player injuries, withdrawal announcements, or recent tournament results can significantly impact trader confidence in either competitor. Changes in court surface conditions, weather forecasts, or head-to-head historical performance updates may also trigger repricing. News coverage, expert commentary, or betting action from professional traders can amplify these moves. Even late-breaking form data or lineup confirmations in the days before play could cause meaningful swings in this market's probability.