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 10, 11:43 AM EST
Polymarket
This market refers to the doubles tennis match between Lock/Lock and Hands/Summers in the Cassis, originally scheduled for September 10, 2026 at 8:30AM ET. This market will resolve to 'Lock/Lock' if the team of Lock/Lock advances against Hands/Summers. This market will resolve to 'Hands/Summers' if the team of Hands/Summers advances against Lock/Lock. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 24, 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 Lock/Lock and Hands/Summers in the Cassis, originally scheduled for September 10, 2026 at 8:30AM ET. This market will resolve to 'Lock/Lock' if the team of Lock/Lock advances against Hands/Summers. This market will resolve to 'Hands/Summers' if the team of Hands/Summers advances against Lock/Lock. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 24, 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 wisdom-of-the-crowd perspective, often differing from initial sportsbook offerings. Sportsbooks set lines based on their own models and to balance action, while this market allows anyone to trade on their beliefs. If a significant number of informed bettors believe a sportsbook’s odds are inaccurate, they can express that view by trading in this market, potentially driving the price away from the sportsbook’s initial assessment. It's common to see discrepancies, particularly before a lot of real-world information becomes available.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome. The price of each share directly corresponds to the implied probability of that outcome occurring. As more traders participate and express their views, the price fluctuates, reflecting the collective prediction. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price movements are driven by supply and demand – if more people believe an outcome is likely, they’ll buy shares, driving up the price, and vice versa. This dynamic process creates a real-time probability assessment.
This market resolves around Sep 17, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Cassis doubles match, as reported by recognized tennis authorities. The platform will verify the result against widely available sources to ensure accuracy and transparency. Traders who correctly predicted the outcome will be entitled to a payout based on the final share price at the time of resolution. It’s important to monitor the event closely as the resolution date approaches.
Several factors could influence the price of this market before Sep 17, 2026. Any news regarding player injuries, changes in playing conditions, or significant shifts in expert analysis could all move the market. Unexpected results in other matches leading up to the Cassis doubles match might also affect trader sentiment. Furthermore, large trades by influential market participants could create short-term price fluctuations. Monitoring tennis news and following expert predictions will be key to understanding potential catalysts for price movement in this market.