TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 5, 3:20 PM EST
Polymarket
This market refers to the doubles tennis match between Reymond/Sanchez and Harrison/Skupski in the US Open ATP, originally scheduled for September 4, 2026 at 11:00AM ET. This market will resolve to 'Reymond/Sanchez' if the team of Reymond/Sanchez advances against Harrison/Skupski. This market will resolve to 'Harrison/Skupski' if the team of Harrison/Skupski advances against Reymond/Sanchez. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 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 Reymond/Sanchez and Harrison/Skupski in the US Open ATP, originally scheduled for September 4, 2026 at 11:00AM ET. This market will resolve to 'Reymond/Sanchez' if the team of Reymond/Sanchez advances against Harrison/Skupski. This market will resolve to 'Harrison/Skupski' if the team of Harrison/Skupski advances against Reymond/Sanchez. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 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.
Typically, prediction market odds reflect a different kind of wisdom than those found at sportsbooks. Sportsbooks often incorporate biases and margins to ensure profitability, while this market relies on the collective intelligence of traders. If sportsbooks heavily favor one team, you might see a divergence in odds here, as traders may identify factors the sportsbook hasn't fully accounted for. However, as the event approaches, the odds on Polymarket tend to converge with sportsbook odds, especially if there’s strong agreement between both.
On Polymarket, this market is priced through a continuous trading mechanism where participants buy and sell shares representing their belief in the outcome. The price of these shares directly reflects the probability of Reymond/Sanchez winning the US Open doubles match against Harrison/Skupski. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more traders believe in an outcome, the higher the share price will climb, and vice versa. This dynamic pricing allows the market to quickly incorporate new information and adjust its predictions accordingly, offering a real-time assessment of expectations.
This market resolves around Sep 11, 2026, with the outcome confirmed once the result of the US Open doubles match is verifiable from credible public reporting. The winning team, as officially declared by the tournament organizers, will determine the resolution of this market. The platform will then verify the result against official sources to ensure accuracy and finalize the payouts to traders who correctly predicted the winner of the US Open doubles match between Reymond/Sanchez and Harrison/Skupski.
Several factors could influence the trading activity in this market. Any news regarding player injuries to either Reymond, Sanchez, Harrison, or Skupski would likely cause significant movement. Updates on their recent performance in other tournaments, changes in coaching staff, or even weather conditions at the US Open could also impact trader sentiment. Additionally, any major upsets in other doubles matches leading up to this one might shift expectations and affect the odds on Polymarket as traders reassess the probabilities.