TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 21, 1:01 PM EST
Polymarket
This market refers to the tennis match between Sacha Maes and Toprak Avcibasi in the M25 Sabadell, Qualifying, originally scheduled for September 21, 2026 at 6:30AM ET. This market will resolve to 'Sacha Maes' if Sacha Maes advances against Toprak Avcibasi. This market will resolve to 'Toprak Avcibasi' if Toprak Avcibasi advances against Sacha Maes. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 5, 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 Sacha Maes and Toprak Avcibasi in the M25 Sabadell, Qualifying, originally scheduled for September 21, 2026 at 6:30AM ET. This market will resolve to 'Sacha Maes' if Sacha Maes advances against Toprak Avcibasi. This market will resolve to 'Toprak Avcibasi' if Toprak Avcibasi advances against Sacha Maes. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 5, 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.
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 more people buy shares in a particular player, the price increases, reflecting a higher implied probability of victory. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price is determined solely by supply and demand within Polymarket, and is not influenced by external factors or any pre-defined valuation model.
This market resolves around Sep 28, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result of the Sabadell tennis match between Sacha Maes and Toprak Avcibasi will be used to determine the winning share. This includes official match results published by governing tennis bodies and widely reported by sports news outlets. The resolution process focuses on establishing a definitive winner based on publicly available, verifiable information, ensuring a transparent and objective outcome for this market.
Several factors could influence trading activity and shift the odds in this market. Any news regarding player form, potential injuries, or changes in playing conditions could significantly impact predictions. Unexpected upsets in earlier rounds of the tournament, or even weather forecasts affecting the match schedule, could also cause movement. Furthermore, large trades executed by individual participants on Polymarket can create price fluctuations, especially if they signal a strong conviction about a particular outcome. Monitoring these signals will be key to understanding how this market evolves.