TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 16, 3:00 AM EST
Polymarket
This market refers to the tennis match between Cezar Cretu and Gustavo Heide in the Iasi, originally scheduled for July 9, 2026 at 3:00AM ET. This market will resolve to 'Cezar Cretu' if Cezar Cretu advances against Gustavo Heide. This market will resolve to 'Gustavo Heide' if Gustavo Heide advances against Cezar Cretu. 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 Cezar Cretu and Gustavo Heide in the Iasi, originally scheduled for July 9, 2026 at 3:00AM ET. This market will resolve to 'Cezar Cretu' if Cezar Cretu advances against Gustavo Heide. This market will resolve to 'Gustavo Heide' if Gustavo Heide advances against Cezar Cretu. 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 let traders directly stake capital on outcomes they believe will occur. This market's odds may lead or lag sportsbook lines depending on which venue's participants have fresher information or stronger conviction. Comparing the two can reveal where smart money is positioning itself ahead of the fight.
On Polymarket, traders set the odds through an automated market maker that adjusts prices based on buy and sell pressure. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more capital flowing toward one fighter, the higher that outcome's price climbs, and vice versa. This continuous repricing mechanism means the market reflects the collective judgment of all active traders in real time, with no central authority fixing the odds. Liquidity and trading volume directly influence how smoothly prices move.
This market resolves around Jul 16, 2026, once the fight concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official decision announced by the event organizers and widely reported by reputable sports media. Until that point, traders can continue to buy and sell shares as new information and fighter performance updates emerge.
Several catalysts could shift odds before the fight takes place. Injury announcements, training camp reports, or changes to fighter conditioning could alter perceptions of readiness. Media coverage, expert analysis, and fighter statements may sway trader sentiment. Weigh-in results and any last-minute rule changes or venue adjustments could also trigger repricing. Additionally, if either fighter's recent performance or public reputation shifts, traders may reassess their positions, driving volume and price movement in this market.