TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 26, 8:00 AM EST
Polymarket
This market refers to the tennis match between Kilian Feldbausch and Sandro Kopp in the Generali Open, Qualification, originally scheduled for July 19, 2026 at 8:00AM ET. This market will resolve to 'Kilian Feldbausch' if Kilian Feldbausch advances against Sandro Kopp. This market will resolve to 'Sandro Kopp' if Sandro Kopp advances against Kilian Feldbausch. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 Kilian Feldbausch and Sandro Kopp in the Generali Open, Qualification, originally scheduled for July 19, 2026 at 8:00AM ET. This market will resolve to 'Kilian Feldbausch' if Kilian Feldbausch advances against Sandro Kopp. This market will resolve to 'Sandro Kopp' if Sandro Kopp advances against Kilian Feldbausch. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 and traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and manage risk, while prediction markets aggregate the collective beliefs of traders who profit directly from accurate forecasts. This market may show materially different odds than major sportsbooks, particularly as new information emerges or as the event date approaches. Comparing the two can reveal where professional bettors and prediction market traders disagree on the likely outcome.
On Polymarket, this market is priced through an automated market maker mechanism where traders buy and sell shares representing each possible outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome reflects the cumulative trading activity and the current balance of buy and sell orders in the pool. As traders adjust their positions based on new information or changing expectations, the implied probability shifts in real time, ensuring the market continuously reprices to reflect the latest consensus view of the match result.
This market resolves around Jul 26, 2026, once the qualification match between the two players concludes and the result is verifiable from credible public sources. The outcome is determined by the official result of the match as reported by the tournament organizers and confirmed through established sports reporting channels. Until that point, traders can continue to buy and sell shares as new developments or player information influence their expectations about the final result.
Several factors may shift trader sentiment and move this market significantly. Player form and recent match results, injury announcements or fitness updates, head-to-head historical records, and court surface conditions can all influence expectations. Tournament draw positioning and momentum from earlier rounds may also play a role. Additionally, real-time match developments—such as early set performance or momentum swings during play—could trigger sharp repricing as traders update their forecasts based on how the competition actually unfolds.