TOTAL VOLUME:
$154.4b
24H VOL:
$290,393,159
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,944,100,805
420,493
Markets across
40,511
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 13, 9:09 AM EST
Polymarket
This market refers to the tennis match between Aleksander Chayka and Filip Martinovic in the M15 Szabolcsveresmart, Main Draw, originally scheduled for October 13, 2026 at 6:00AM ET. This market will resolve to 'Aleksander Chayka' if Aleksander Chayka advances against Filip Martinovic. This market will resolve to 'Filip Martinovic' if Filip Martinovic advances against Aleksander Chayka. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 27, 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 Aleksander Chayka and Filip Martinovic in the M15 Szabolcsveresmart, Main Draw, originally scheduled for October 13, 2026 at 6:00AM ET. This market will resolve to 'Aleksander Chayka' if Aleksander Chayka advances against Filip Martinovic. This market will resolve to 'Filip Martinovic' if Filip Martinovic advances against Aleksander Chayka. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 27, 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 wisdom of the crowd, potentially differing from traditional sportsbook odds. Sportsbooks set lines based on their own models and aim to balance action on both sides, while this market allows anyone to express their belief about the outcome. If a significant number of people believe a sportsbook’s odds are inaccurate, they can trade in this market to capitalize on the discrepancy. This can lead to prediction market odds being more accurate, especially when there's substantial volume and diverse participation. It's important to compare and contrast to inform your own assessment.
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 a share directly corresponds to the probability of that outcome occurring, as perceived by the market participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more shares bought for a particular outcome, the higher its price rises, indicating increased confidence. This dynamic pricing reflects the collective intelligence of the traders and adjusts as new information becomes available. The market’s price is determined purely by supply and demand within Polymarket.
This market resolves around Oct 20, 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 Chayka vs Martinovic match as declared by the relevant governing body for professional tennis. The platform will verify the result against publicly available sources to determine the winning outcome. Traders who hold shares in the correct outcome will be entitled to a payout based on the final market price at the time of resolution. This ensures a transparent and objective settlement process.
Several factors could influence trading activity and shift the odds in this market. Any news regarding player injuries, changes in playing conditions, or even updated rankings could impact the perceived likelihood of each player winning. Unexpected results in other matches involving these players, or significant shifts in public opinion, could also drive trading volume and price movements. Furthermore, large trades by influential market participants could create short-term volatility. Monitoring these signals will be key to understanding how this market evolves leading up to Oct 20, 2026.