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 17, 4:00 AM EST
Polymarket
This market refers to the tennis match between Valentina Ryser and Victoria Allen in the ITF Women Don Benito, originally scheduled for July 10, 2026 at 4:00AM ET. This market will resolve to 'Valentina Ryser' if Valentina Ryser advances against Victoria Allen. This market will resolve to 'Victoria Allen' if Victoria Allen advances against Valentina Ryser. 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 Valentina Ryser and Victoria Allen in the ITF Women Don Benito, originally scheduled for July 10, 2026 at 4:00AM ET. This market will resolve to 'Valentina Ryser' if Valentina Ryser advances against Victoria Allen. This market will resolve to 'Victoria Allen' if Victoria Allen advances against Valentina Ryser. 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 markets and traditional sportsbooks price events differently. Sportsbooks set odds to balance their book and lock in profit margins, while prediction markets aggregate trader beliefs through continuous price discovery. This market reflects what a diverse crowd of traders believes will happen, often incorporating real-time information faster than sportsbooks adjust their lines. Comparing this market's implied probability to major sportsbook odds can reveal where consensus diverges, though both venues may shift as match day approaches and new developments emerge.
On Polymarket, this market is priced through an automated market maker that converts trader activity into real-time odds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Shares representing each outcome trade continuously, and the price you see reflects the cumulative bets placed by all participants. As more traders buy or sell shares, the probability shifts accordingly. This mechanism ensures transparent, friction-free pricing without a traditional bookmaker setting arbitrary lines, allowing the market to respond dynamically to new information and trader conviction.
This market resolves around Jul 17, 2026, once the tennis match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result—which player wins the contest. Until that point, traders can continue to buy and sell shares as odds fluctuate. Resolution happens automatically once the event is finalized, ensuring all positions settle fairly and transparently according to what actually occurred on court.
Several factors may shift odds before the match concludes. Injury announcements or withdrawal news involving either player would trigger sharp repricing. Recent tournament results, head-to-head records, and surface-specific form all influence trader positioning. Weather conditions at the venue, court surface details, and any last-minute lineup changes can spark trading activity. Media coverage highlighting player momentum or confidence also moves this market. As match day approaches, traders typically increase activity, and any breaking news—from training reports to player statements—can cause rapid probability swings.