TOTAL VOLUME:
$154.6b
24H VOL:
$323,326,361
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,969,435,260
419,363
Markets across
40,411
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 7, 8:49 AM EST
Polymarket
This market refers to the tennis match between Thomas Kostka and Marcus Walters in the M15 Heraklion, Main Draw, originally scheduled for October 7, 2026 at 4:00AM ET. This market will resolve to 'Thomas Kostka' if Thomas Kostka advances against Marcus Walters. This market will resolve to 'Marcus Walters' if Marcus Walters advances against Thomas Kostka. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Thomas Kostka and Marcus Walters in the M15 Heraklion, Main Draw, originally scheduled for October 7, 2026 at 4:00AM ET. This market will resolve to 'Thomas Kostka' if Thomas Kostka advances against Marcus Walters. This market will resolve to 'Marcus Walters' if Marcus Walters advances against Thomas Kostka. 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 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 forecasters, potentially differing from those offered by traditional sportsbooks. Sportsbooks set their lines based on models and are influenced by factors like public betting patterns and profit margins. This market, however, is driven by individuals directly incentivized to predict the correct outcome. Discrepancies can arise due to differing information, analytical approaches, or simply varying levels of confidence in a particular result. Examining these differences can reveal insights into where the crowd believes sportsbooks may be mispricing the event.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome of the Kostka vs Walters match. The price of a share directly corresponds to the implied probability of that outcome occurring. As more traders buy shares in a particular outcome, its price increases, reflecting growing confidence. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market dynamically adjusts to new information and changing sentiment, providing a real-time assessment of the event's potential results. The current price reflects the aggregated predictions of all participants.
This market resolves around Oct 14, 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 Kostka vs Walters match as reported by the governing body of the M15 Heraklion tournament. The platform will verify the result against established sources to ensure accuracy and transparency. Traders will then be able to claim their winnings based on the final outcome and their holdings in the market.
Several signals or events could significantly move this market before resolution. Any news regarding player form, injuries to either Thomas Kostka or Marcus Walters, or changes in playing conditions could influence trader sentiment. Unexpected results in prior matches for either player, or analysis from tennis experts predicting a shift in momentum, could also drive price changes. Furthermore, significant trading volume itself can act as a signal, indicating increased conviction among market participants and potentially triggering further movement in the odds.