TOTAL VOLUME:
$154.4b
24H VOL:
$245,801,863
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,902,097,102
417,059
Markets across
40,178
events
MATCHED EVENTS:
4,415
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 8, 1:58 AM EST
Polymarket
This market refers to the tennis match between Kimmer Coppejans and Stefanos Tsitsipas in the Shanghai Rolex Masters, originally scheduled for October 7, 2026 at 10:00PM ET. This market will resolve to 'Kimmer Coppejans' if Kimmer Coppejans advances against Stefanos Tsitsipas. This market will resolve to 'Stefanos Tsitsipas' if Stefanos Tsitsipas advances against Kimmer Coppejans. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 21, 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 player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player 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 tennis match between Kimmer Coppejans and Stefanos Tsitsipas in the Shanghai Rolex Masters, originally scheduled for October 7, 2026 at 10:00PM ET. This market will resolve to 'Kimmer Coppejans' if Kimmer Coppejans advances against Stefanos Tsitsipas. This market will resolve to 'Stefanos Tsitsipas' if Stefanos Tsitsipas advances against Kimmer Coppejans. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 21, 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 player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player 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 the wisdom of the crowd, often incorporating information and perspectives not immediately captured by traditional sportsbooks. While sportsbooks set initial lines based on statistical models and expert analysis, this market allows anyone to trade on their beliefs, potentially leading to odds that diverge from those offered elsewhere. It's common to see prediction markets react quickly to breaking news or shifts in public opinion, offering a potentially more dynamic assessment of the likely outcome than fixed sportsbook lines.
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 these shares directly reflects the implied probability of that outcome occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price is determined entirely by supply and demand; if more traders believe Tsitsipas will win, the price of shares representing his victory will increase, and vice versa. This creates a real-time assessment of the match's potential result based on collective intelligence.
This market resolves around Oct 15, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result of the Shanghai Rolex Masters match between Kimmer Coppejans and Stefanos Tsitsipas, as declared by the tournament organizers. The market will determine which player ultimately won the match, based on the official score and result, and shares will be settled accordingly. Traders should monitor official sources for the final result to understand when the market will close.
Several factors could influence the trading activity in this market. Any news regarding player injuries, changes in playing conditions, or even unexpected performance in preceding matches could shift trader sentiment. A strong showing by Coppejans in an earlier round, or reports of Tsitsipas struggling with fitness, could significantly alter the odds. Publicly available analysis from tennis experts and updated player rankings could also contribute to price movements, as traders adjust their positions based on new information leading up to Oct 15, 2026.