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, 10:30 PM EST
Polymarket
This market refers to the tennis match between Duarte Lima Sanches and Goncalo Da Rosa Castro in the M25 Setubal, Qualifying, originally scheduled for September 20, 2026 at 7:30AM ET. This market will resolve to 'Duarte Lima Sanches' if Duarte Lima Sanches advances against Goncalo Da Rosa Castro. This market will resolve to 'Goncalo Da Rosa Castro' if Goncalo Da Rosa Castro advances against Duarte Lima Sanches. 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 Duarte Lima Sanches and Goncalo Da Rosa Castro in the M25 Setubal, Qualifying, originally scheduled for September 20, 2026 at 7:30AM ET. This market will resolve to 'Duarte Lima Sanches' if Duarte Lima Sanches advances against Goncalo Da Rosa Castro. This market will resolve to 'Goncalo Da Rosa Castro' if Goncalo Da Rosa Castro advances against Duarte Lima Sanches. 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.
Typically, prediction market odds offer a different perspective than those found at traditional sportsbooks. Sportsbooks often incorporate a 'vig' or commission into their odds, representing their profit margin. This market, driven by the wisdom of the crowd on Polymarket, aims to represent the true probability of an outcome, although discrepancies can occur due to differing information or biases. It’s common to see prediction markets outperform sportsbooks in accuracy, particularly when a large number of informed traders participate.
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 reflects the implied probability of that outcome occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price fluctuates based on supply and demand, driven by new information and changing opinions among traders. A higher price indicates greater confidence in a particular outcome, while a lower price suggests less confidence.
This market resolves around Sep 27, 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 Setubal tennis match between Duarte Lima Sanches and Goncalo Da Rosa Castro. The platform will verify the result against established sports authorities and reporting to determine the winning outcome of this market.
Several factors could influence the price of this market before resolution. Any news regarding player form, injuries, or changes in playing conditions could significantly shift the odds. Unexpected upsets in other matches involving these players might also impact market sentiment. Furthermore, large trades on Polymarket by informed participants could create momentum and cause the price to move. Monitoring these signals will be key to understanding potential shifts in the market’s prediction.