TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 23, 4:00 AM EST
Polymarket
This market refers to the doubles tennis match between Halys/Herbert and Paul/Seggerman in the Swiss Open, originally scheduled for July 16, 2026 at 4:00AM ET. This market will resolve to 'Halys/Herbert' if the team of Halys/Herbert advances against Paul/Seggerman. This market will resolve to 'Paul/Seggerman' if the team of Paul/Seggerman advances against Halys/Herbert. 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the doubles tennis match between Halys/Herbert and Paul/Seggerman in the Swiss Open, originally scheduled for July 16, 2026 at 4:00AM ET. This market will resolve to 'Halys/Herbert' if the team of Halys/Herbert advances against Paul/Seggerman. This market will resolve to 'Paul/Seggerman' if the team of Paul/Seggerman advances against Halys/Herbert. 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 ATP Tour. A consensus of credible reporting may also be used.
Prediction market odds and traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and manage risk, while prediction markets aggregate the beliefs of traders who have financial skin in the game. This market's odds may run ahead of or lag behind sportsbook lines depending on which venue's participants have fresher information or stronger conviction. Comparing the two can reveal where smart money is positioning itself and highlight potential value opportunities for informed bettors.
On Polymarket, this market is priced through an automated market maker that converts trader positions into real-time probabilities. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders buy and sell shares representing each outcome, and the cumulative order flow determines the current odds. As more capital flows toward one outcome, its price rises and the opposing outcome's price falls, creating a self-correcting mechanism. This continuous repricing ensures the market reflects the latest information and trader conviction available at any moment.
This market resolves around Jul 23, 2026, once the Swiss Open men's doubles final has concluded and the result is verifiable from credible public sources. The outcome is determined by which team wins the match according to official tournament records. Until that point, traders can continue to buy and sell positions as new information emerges, injuries are announced, or betting patterns shift. Resolution is automatic once the event concludes and the winner is confirmed.
Several factors could shift odds significantly before the final. Player injuries or withdrawals would immediately reprrice the market, as would unexpected upsets in earlier rounds that change perceptions of team form. Media coverage, expert analysis, and betting patterns from major sportsbooks can trigger trader repositioning. Weather conditions at the venue, recent head-to-head records, and court surface preferences may influence late-stage trading. Social media sentiment and sharp money movements often precede larger swings, so monitoring activity spikes can signal incoming volatility.