TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 22, 12:00 PM EST
Polymarket
This market refers to the tennis match between Flavio Cobolli and Roman Andres Burruchaga in the Croatia Open, originally scheduled for July 15, 2026 at 12:00PM ET. This market will resolve to 'Flavio Cobolli' if Flavio Cobolli advances against Roman Andres Burruchaga. This market will resolve to 'Roman Andres Burruchaga' if Roman Andres Burruchaga advances against Flavio Cobolli. 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 Flavio Cobolli and Roman Andres Burruchaga in the Croatia Open, originally scheduled for July 15, 2026 at 12:00PM ET. This market will resolve to 'Flavio Cobolli' if Flavio Cobolli advances against Roman Andres Burruchaga. This market will resolve to 'Roman Andres Burruchaga' if Roman Andres Burruchaga advances against Flavio Cobolli. 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 lock in profit margins, while prediction markets are driven by traders risking real capital on their beliefs about the outcome. This market aggregates the collective forecast of thousands of independent participants, which can sometimes reveal edges that traditional oddsmakers miss. Comparing the two can highlight where the crowd sees value or where consensus may be overconfident.
On Polymarket, this market is priced through an automated market maker that adjusts odds based on order flow and the ratio of shares held for each outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders purchase shares representing their prediction, and the price of each outcome moves inversely to demand—higher buying pressure raises the implied probability, while selling pressure lowers it. This continuous repricing mechanism ensures the market stays responsive to new information and trader conviction throughout the event window.
This market resolves around Jul 22, 2026, once the match concludes and the result is verifiable from credible public sources. The outcome is determined by the official match result—specifically, which player wins the contest. Traders holding shares in the winning outcome receive their payout, while losing positions expire worthless. Resolution typically occurs within hours of the final score being confirmed by the tournament organizer or major sports data providers.
Several factors can shift odds before the match begins or during play. Pre-match catalysts include injury reports, recent form and head-to-head records, court surface conditions, and player statements about fitness or strategy. During the event, real-time momentum—such as set wins, break points, or visible fatigue—often triggers sharp repricing as traders react to unfolding action. Major upsets or unexpected tactical shifts can also spark significant volume spikes. Monitoring these signals helps traders anticipate price moves and adjust positions accordingly.