TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 15, 10:00 AM EST
Polymarket
This market refers to the tennis match between Audrey Spencer and Yuki Naito in the ITF Women Columbus, originally scheduled for July 8, 2026 at 10:00AM ET. This market will resolve to 'Audrey Spencer' if Audrey Spencer advances against Yuki Naito. This market will resolve to 'Yuki Naito' if Yuki Naito advances against Audrey Spencer. 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 Audrey Spencer and Yuki Naito in the ITF Women Columbus, originally scheduled for July 8, 2026 at 10:00AM ET. This market will resolve to 'Audrey Spencer' if Audrey Spencer advances against Yuki Naito. This market will resolve to 'Yuki Naito' if Yuki Naito advances against Audrey Spencer. 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 odds to balance action and lock in profit margins, while prediction markets like Polymarket are driven by traders seeking to profit on accurate forecasts. This market may show different implied probabilities than traditional sports betting sites, especially if one venue has sharper or more active participants. Comparing the two can reveal where consensus is strongest and where informed traders see value relative to conventional bookmakers.
On Polymarket, traders set the odds through an automated market maker that adjusts prices based on buy and sell pressure. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders purchase shares predicting one outcome, the price for that outcome rises and the opposing outcome falls, creating a continuous equilibrium. The current price directly reflects the crowd's collective belief about who will win. Liquidity and trading volume influence how quickly prices move, so periods of high activity can produce sharper repricing than slower trading windows.
This market resolves around Jul 15, 2026, once the match concludes and the result is verifiable from credible public sources. The outcome will be determined by the official match result reported by the ITF or other authoritative tennis bodies. Traders holding shares in the winning outcome will receive their payout once the event is confirmed and the market settles. Until that point, prices will continue to fluctuate based on pre-match analysis, player form, and real-time developments.
Several factors could shift odds before the match begins. Injury announcements or withdrawal news involving either player would trigger sharp repricing. Recent tournament results, head-to-head records, and surface performance data often influence trader sentiment. Changes in player ranking or seeding, coaching staff updates, or public statements about fitness and preparation can also move the market. Weather forecasts for match day and draw announcements may sway expectations. Social media buzz, expert commentary, and betting syndicates entering the market can amplify price swings as new information reaches traders.