TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 25, 4:00 AM EST
Polymarket
This market refers to the tennis match between Guy Den Ouden and Kimmer Coppejans in the Bunschoten, originally scheduled for July 18, 2026 at 4:00AM ET. This market will resolve to 'Guy Den Ouden' if Guy Den Ouden advances against Kimmer Coppejans. This market will resolve to 'Kimmer Coppejans' if Kimmer Coppejans advances against Guy Den Ouden. 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 Guy Den Ouden and Kimmer Coppejans in the Bunschoten, originally scheduled for July 18, 2026 at 4:00AM ET. This market will resolve to 'Guy Den Ouden' if Guy Den Ouden advances against Kimmer Coppejans. This market will resolve to 'Kimmer Coppejans' if Kimmer Coppejans advances against Guy Den Ouden. 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 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 beliefs from traders who have direct financial exposure to accuracy. This market's odds may lead or lag traditional sportsbook lines depending on information flow and trader conviction. Comparing the two can reveal where the broader market sees value or where consensus is shifting, though prediction markets tend to be efficient at incorporating public information quickly.
On Polymarket, this market is priced through an automated market maker that converts trader positions into real-time probabilities. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders buy or sell shares tied to a particular outcome, the price adjusts continuously to reflect the implied likelihood. The mechanism ensures transparent, friction-free pricing without a traditional order book. You can enter or exit positions at any time, and the price you receive depends on the current state of the liquidity pool and the size of your trade.
This market resolves around Jul 25, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will reflect who wins the tennis match between the two players. Until that point, traders can continue to buy and sell shares based on their expectations. Resolution is automatic once the event is confirmed, and all positions settle according to the final result.
Several factors may shift trader sentiment before resolution. Recent form, head-to-head records, and player rankings can influence expectations. Court surface, weather conditions, and injury reports closer to match day often trigger repricing. News about player fitness, coaching changes, or tournament momentum may also sway the odds. Major upsets or surprising performances in related matches can alter how traders assess the likelihood of each outcome, causing the market price to swing in real time.