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: Sep 4, 1:43 AM EST
Polymarket
This market refers to the doubles tennis match between Papa/Zheng and Castelnuovo/Santillan in the Zhangjiagang, originally scheduled for September 1, 2026 at 12:00AM ET. This market will resolve to 'Papa/Zheng' if the team of Papa/Zheng advances against Castelnuovo/Santillan. This market will resolve to 'Castelnuovo/Santillan' if the team of Castelnuovo/Santillan advances against Papa/Zheng. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 15, 2026, 11:59 PM ET (14 days after the scheduled start), 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 Papa/Zheng and Castelnuovo/Santillan in the Zhangjiagang, originally scheduled for September 1, 2026 at 12:00AM ET. This market will resolve to 'Papa/Zheng' if the team of Papa/Zheng advances against Castelnuovo/Santillan. This market will resolve to 'Castelnuovo/Santillan' if the team of Castelnuovo/Santillan advances against Papa/Zheng. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 15, 2026, 11:59 PM ET (14 days after the scheduled start), 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 in this market often reflect a different outlook than traditional sportsbook lines. While sportsbooks may set their lines based on broader analytics and betting volumes, prediction markets let traders bet directly on their beliefs, which can create tighter or more volatile pricing. Traders here are pricing in factors like recent form and head-to-head history, so the implied probabilities can diverge from sportsbook odds, especially if there’s new information or shifting momentum in the lead-up to the match.
This market resolves around Sep 8, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result is determined by the official match result, which will be compared against the market’s defined outcomes. Once the match concludes and the result is publicly reported, the market will settle based on that verified information.
Injuries, changes in player form, or weather conditions could shift this market as the event nears. Any news about the players’ preparation, recent matches, or even shifts in betting sentiment on Polymarket can cause price movements. As the match approaches, updated odds from sportsbooks or analyst predictions may also influence trader behavior, leading to fluctuations in the implied probabilities for each team.