TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 15, 4:00 AM EST
Polymarket
This market refers to the tennis match between Simona Waltert and Aneta Laboutkova in the Bastad, originally scheduled for July 8, 2026 at 4:00AM ET. This market will resolve to 'Simona Waltert' if Simona Waltert advances against Aneta Laboutkova. This market will resolve to 'Aneta Laboutkova' if Aneta Laboutkova advances against Simona Waltert. 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 WTA Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Simona Waltert and Aneta Laboutkova in the Bastad, originally scheduled for July 8, 2026 at 4:00AM ET. This market will resolve to 'Simona Waltert' if Simona Waltert advances against Aneta Laboutkova. This market will resolve to 'Aneta Laboutkova' if Aneta Laboutkova advances against Simona Waltert. 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 WTA Tour. 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 wagering real capital on outcomes they believe are mispriced. Prediction markets typically incorporate broader information flows and can react faster to breaking news or shifting sentiment. Comparing this market's implied probability to major sportsbook lines can reveal where professional bettors and retail traders disagree, potentially signaling value or consensus shifts in real time.
On Polymarket, traders set the odds through an automated market maker that adjusts prices based on order flow and liquidity. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each share represents a claim on one outcome, and the price reflects the collective belief of all active traders at that moment. As more capital flows toward one player, her implied win probability rises and the opposing outcome falls accordingly. The spread between bid and ask prices tightens or widens depending on trading volume and depth, giving you a sense of how contested the market is.
This market resolves around Jul 15, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome is determined by which player wins the match; no partial or conditional payouts apply. Resolution occurs automatically once the event is confirmed through established sports data sources and the platform's verification process. Traders holding shares in the winning outcome receive their payout, while losing positions expire worthless.
Several factors can shift this market significantly before the match begins. Injury reports or withdrawal announcements involving either player would trigger sharp repricing. Recent tournament results, head-to-head records, and court surface preference (clay at Bastad) all influence trader conviction. Betting action from professional syndicates or sudden social media momentum can also accelerate price moves. Weather forecasts, player fatigue from earlier rounds, and late-breaking form updates are catalysts traders monitor closely. Large single trades or coordinated buying can amplify volatility, especially if liquidity is thin.