TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 16, 7:43 AM EST
Polymarket
This market refers to the tennis match between Ryan Colby and Vasco Leote Prata in the M25 Sintra, Main Draw, originally scheduled for September 16, 2026 at 5:00AM ET. This market will resolve to 'Ryan Colby' if Ryan Colby advances against Vasco Leote Prata. This market will resolve to 'Vasco Leote Prata' if Vasco Leote Prata advances against Ryan Colby. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 30, 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 Ryan Colby and Vasco Leote Prata in the M25 Sintra, Main Draw, originally scheduled for September 16, 2026 at 5:00AM ET. This market will resolve to 'Ryan Colby' if Ryan Colby advances against Vasco Leote Prata. This market will resolve to 'Vasco Leote Prata' if Vasco Leote Prata advances against Ryan Colby. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 30, 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 bettors, potentially offering a different perspective than traditional sportsbooks. Sportsbooks set their lines based on their own models and risk management, while this market is driven by individuals trading based on their own research and insights. It's common to see discrepancies emerge, especially when there's significant public interest or disagreement about the likely outcome. Comparing the two can be a useful exercise for informed decision-making, but remember that each represents a distinct form of forecasting.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in a particular 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 traders who believe an outcome is likely, the higher the price of its shares will climb, and vice versa. This dynamic pricing ensures that the market reflects the most up-to-date collective intelligence.
This market resolves around Sep 23, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official results of the M25 Sintra race, determining which competitor achieved the fastest time. The platform will verify the results against established sources to ensure accuracy and transparency. Traders holding shares in the winning competitor will receive a payout equivalent to 100 shares per winning outcome, while those holding shares in losing competitors will receive nothing.
Several factors could influence trading activity in this market. Any news regarding the physical condition of Ryan Colby or Vasco Leote Prata, such as injuries or illness, would likely cause significant shifts in the odds. Weather conditions on race day could also play a role, as certain racers may perform better in specific conditions. Unexpected announcements about race strategy or equipment changes could also impact trader sentiment. Monitoring these types of events and news sources can provide valuable insights into potential market movements.