TOTAL VOLUME:
$154.3b
24H VOL:
$219,029,434
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,869,293,526
411,051
Markets across
40,408
events
MATCHED EVENTS:
4,377
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
This market refers to the tennis match between Joshua Sheehy and Ivan Marrero Curbelo in the Villena, Spain, Qualifying, originally scheduled for October 4, 2026 at 8:30AM ET. This market will resolve to 'Joshua Sheehy' if Joshua Sheehy advances against Ivan Marrero Curbelo. This market will resolve to 'Ivan Marrero Curbelo' if Ivan Marrero Curbelo advances against Joshua Sheehy. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 18, 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Joshua Sheehy and Ivan Marrero Curbelo in the Villena, Spain, Qualifying, originally scheduled for October 4, 2026 at 8:30AM ET. This market will resolve to 'Joshua Sheehy' if Joshua Sheehy advances against Ivan Marrero Curbelo. This market will resolve to 'Ivan Marrero Curbelo' if Ivan Marrero Curbelo advances against Joshua Sheehy. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 18, 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 ATP Tour. A consensus of credible reporting may also be used.
Prediction market odds often reflect the collective wisdom of a diverse group of traders, potentially offering a different perspective than traditional sportsbooks. Sportsbooks set lines based on their own models and risk management, while this market is driven by individual predictions and available information. Discrepancies can arise due to differing opinions, access to unique data, or simply variations in how probabilities are assessed. It’s common to see this market and sportsbook odds converge as the event approaches and more information becomes available.
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 implied probability of that outcome occurring. As more traders participate, the price adjusts to reflect the collective assessment of the event’s likelihood. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current top outcome, as indicated by share price, is the outcome with the highest probability assigned by traders on Polymarket.
This market resolves around Oct 11, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will depend on the official result of the Villena match between Joshua Sheehy and Ivan Marrero Curbelo. The platform will rely on established sports data sources to determine the winner, ensuring a transparent and accurate settlement process. Traders should monitor official sources for updates as the resolution date approaches.
Several factors could influence the price of shares in this market before Oct 11, 2026. Any news regarding player injuries, changes in playing conditions, or updated match previews could shift trader sentiment. Unexpected announcements about team strategies or player form could also lead to price fluctuations. Furthermore, significant betting activity or large trades on Polymarket itself can create momentum and impact the perceived probability of each outcome. Monitoring these signals is crucial for understanding potential market movements.