TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 20, 7:00 PM EST
Polymarket
This market refers to the tennis match between Shyam Sundarr Shri Sailesh and David Naharro in the M25 Sabadell, Qualifying, originally scheduled for September 20, 2026 at 4:00AM ET. This market will resolve to 'Shyam Sundarr Shri Sailesh' if Shyam Sundarr Shri Sailesh advances against David Naharro. This market will resolve to 'David Naharro' if David Naharro advances against Shyam Sundarr Shri Sailesh. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 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 Shyam Sundarr Shri Sailesh and David Naharro in the M25 Sabadell, Qualifying, originally scheduled for September 20, 2026 at 4:00AM ET. This market will resolve to 'Shyam Sundarr Shri Sailesh' if Shyam Sundarr Shri Sailesh advances against David Naharro. This market will resolve to 'David Naharro' if David Naharro advances against Shyam Sundarr Shri Sailesh. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 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.
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 traders participate, the price converges towards what the market collectively believes is the true probability. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current implied probability of a particular player winning is reflected in the share price, and this constantly adjusts based on supply and demand.
This market resolves around Sep 27, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the M25 Sabadell tennis match, as declared by the tournament organizers. The player who wins the match will be considered the winning outcome for this market. The platform will verify the result against publicly available sources to ensure accuracy and transparency, providing a definitive conclusion to the prediction.
Several factors could influence the trading activity in this market. Any news regarding player form, injuries, or changes to playing conditions could significantly shift the odds. Unexpected upsets in earlier rounds of the tournament, or even weather forecasts impacting the match schedule, could also cause movement. Furthermore, large trades from influential participants, or even social media discussions gaining traction, can create momentum and alter the perceived probabilities. Monitoring these signals will be key to understanding how this market evolves.