TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 17, 9:00 AM EST
Polymarket
This market refers to the tennis match between Kimmer Coppejans and Guy Den Ouden in the Liege, originally scheduled for July 10, 2026 at 9:00AM ET. This market will resolve to 'Kimmer Coppejans' if Kimmer Coppejans advances against Guy Den Ouden. This market will resolve to 'Guy Den Ouden' if Guy Den Ouden advances against Kimmer Coppejans. 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 Kimmer Coppejans and Guy Den Ouden in the Liege, originally scheduled for July 10, 2026 at 9:00AM ET. This market will resolve to 'Kimmer Coppejans' if Kimmer Coppejans advances against Guy Den Ouden. This market will resolve to 'Guy Den Ouden' if Guy Den Ouden advances against Kimmer Coppejans. 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 protect their margin, while prediction markets aggregate the beliefs of traders risking real capital. For this market, comparing the implied probability here to major sportsbook lines can reveal whether professional oddsmakers and decentralized traders agree on the likely winner. Significant gaps may signal value or highlight where one venue sees information the other has not yet priced in.
On Polymarket, this market is priced through an automated market maker that adjusts odds continuously as traders place bets. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome share reflects the cumulative belief of all participants; as more capital flows toward one player, that outcome's price rises and the opposing price falls. Traders profit by buying low and selling high, or by holding shares until resolution. The spread between bid and ask prices tightens as volume increases, making it cheaper to enter or exit a position.
This market resolves around Jul 17, 2026, once the match concludes and the winner is verified against credible public reporting. The outcome is determined by the official result of the tennis match between the two players. Until that time, traders can buy and sell shares freely, and prices will fluctuate based on news, player form, injuries, or other factors that shift expectations about who will prevail on the court.
Several factors could shift prices before the match takes place. Recent tournament results, head-to-head records, and player rankings often influence trader sentiment. Injuries, withdrawals, or changes in court conditions announced closer to the event date can trigger sharp repricing. Media coverage highlighting one player's form or momentum may also sway the market. Additionally, betting patterns and large trades by sophisticated players can signal new information and prompt others to adjust their positions, creating cascading price moves in either direction.