TOTAL VOLUME:
$154.8b
24H VOL:
$245,601,049
24H TRANSACTIONS:
2,985,204,718
OPEN INTEREST:
$1,897,405,322
408,349
Markets across
39,583
events
MATCHED EVENTS:
4,443
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 21, 8:51 AM EST
Polymarket
This market refers to the tennis match between Petros Tsitsipas and Amit Vales in the M15 Heraklion, Main Draw, originally scheduled for October 21, 2026 at 3:30AM ET. This market will resolve to 'Petros Tsitsipas' if Petros Tsitsipas advances against Amit Vales. This market will resolve to 'Amit Vales' if Amit Vales advances against Petros Tsitsipas. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 4, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Petros Tsitsipas and Amit Vales in the M15 Heraklion, Main Draw, originally scheduled for October 21, 2026 at 3:30AM ET. This market will resolve to 'Petros Tsitsipas' if Petros Tsitsipas advances against Amit Vales. This market will resolve to 'Amit Vales' if Amit Vales advances against Petros Tsitsipas. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 4, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Prediction market odds often reflect the collective wisdom of a diverse group of traders, and can sometimes differ from traditional sportsbook odds. Sportsbooks set lines based on their own models and aim to balance action on both sides, while this market is driven purely by individuals willing to put their capital behind their beliefs. Discrepancies can arise due to differing information, biases, or simply variations in how each assesses the probability of an outcome. It’s common to see prediction markets incorporate information faster than sportsbooks, especially in response to breaking news or late-developing insights.
This market resolves around Oct 28, 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 Petros Tsitsipas vs Amit Vales match as reported by a recognized sports authority. The platform will verify the result against these sources to determine the winning outcome. Traders who held shares in the correct outcome will be entitled to a payout based on the final market price at the time of resolution, while those holding shares in the losing outcome will forfeit their investment.
Several signals or events could significantly move this market before it resolves. Any news regarding player injuries, changes in playing conditions, or even updated analysis from tennis experts could shift trader sentiment. Unexpected results in other matches involving these players, or even broader trends in tournament performance, could also influence the market. Major upsets in similar matches or significant changes in betting patterns at sportsbooks might also cause shifts. Ultimately, any information that alters the perceived probability of either player winning will likely impact the price of shares in this market.