TOTAL VOLUME:
$154.4b
24H VOL:
$235,918,089
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,884,820,873
413,109
Markets across
40,428
events
MATCHED EVENTS:
4,364
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 9, 2:41 AM EST
Polymarket
This market refers to the tennis match between Ben Shelton and Daniel Altmaier in the Shanghai Rolex Masters, originally scheduled for October 9, 2026 at 10:00PM ET. This market will resolve to 'Ben Shelton' if Ben Shelton advances against Daniel Altmaier. This market will resolve to 'Daniel Altmaier' if Daniel Altmaier advances against Ben Shelton. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 23, 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 Ben Shelton and Daniel Altmaier in the Shanghai Rolex Masters, originally scheduled for October 9, 2026 at 10:00PM ET. This market will resolve to 'Ben Shelton' if Ben Shelton advances against Daniel Altmaier. This market will resolve to 'Daniel Altmaier' if Daniel Altmaier advances against Ben Shelton. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 23, 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.
Often, prediction market odds reflect a different perspective than those offered by traditional sportsbooks. Sportsbooks typically set lines to balance action and incorporate a profit margin, while this market relies on the collective wisdom of traders. If a significant discrepancy exists, it could indicate that traders believe the sportsbook is mispricing the probability of a particular outcome. It’s important to remember that both represent probabilities, but they are derived through different mechanisms and may appeal to different types of bettors.
This market resolves around Oct 17, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Shanghai Rolex Masters match between Ben Shelton and Daniel Altmaier, as reported by official tournament sources. The market will determine which player won the match, and the outcome will be based on the official scoreline and any relevant rulings made by tournament officials.
Several factors could influence trading activity in this market. Any news regarding player fitness, such as an injury to either Ben Shelton or Daniel Altmaier, would likely cause significant movement. Changes in weather conditions at the tournament location could also impact the perceived advantage of either player. Furthermore, updates on their recent performance in other matches, or even strategic adjustments revealed during practice sessions, could all contribute to shifts in the probabilities reflected in this market.