TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 23, 10:00 AM EST
Polymarket
This market refers to the doubles tennis match between Romios/Uesugi and Barton/Kumstat in the Bunschoten, originally scheduled for July 16, 2026 at 10:00AM ET. This market will resolve to 'Romios/Uesugi' if the team of Romios/Uesugi advances against Barton/Kumstat. This market will resolve to 'Barton/Kumstat' if the team of Barton/Kumstat advances against Romios/Uesugi. 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 Romios/Uesugi and Barton/Kumstat in the Bunschoten, originally scheduled for July 16, 2026 at 10:00AM ET. This market will resolve to 'Romios/Uesugi' if the team of Romios/Uesugi advances against Barton/Kumstat. This market will resolve to 'Barton/Kumstat' if the team of Barton/Kumstat advances against Romios/Uesugi. 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 markets and traditional sportsbooks price events differently because they operate on distinct mechanisms. Sportsbooks set odds based on internal models and manage risk through margin, while prediction markets derive prices from continuous trader participation and supply-demand dynamics. This market reflects aggregated trader conviction rather than a bookmaker's calculated spread. Comparing this market's odds to major sportsbooks can reveal where professional and retail traders diverge on the likely outcome, though prediction market prices often converge toward consensus as the event date nears.
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. Participants buy and sell shares representing each outcome, and the cumulative trading activity determines the current odds. As traders adjust their positions based on new information or changing expectations, the price updates instantly. This continuous repricing mechanism ensures the market reflects live sentiment and allows participants to enter or exit positions at transparent, algorithmically determined rates throughout the trading window.
This market resolves around Jul 23, 2026, once the doubles match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result between the two pairs. Until that point, traders can adjust positions as new information emerges, such as player form, injuries, or head-to-head records. Resolution typically occurs shortly after the match ends, allowing the market to settle and payouts to be distributed to holders of the winning outcome.
Several factors may shift odds before Jul 23, 2026. Player injuries or withdrawals announced before the match could significantly alter expectations for either pair. Recent tournament performance, court surface preferences, and head-to-head records may prompt traders to reassess probabilities. Weather conditions or scheduling changes could also influence sentiment. As the match date approaches, increased media coverage and expert commentary often drive trading volume and price adjustments. Late-breaking news about player fitness or tactical adjustments may trigger sharp moves in the final hours before play begins.