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: Jun 25, 3:00 AM EST
Polymarket
This market refers to the tennis match between Ivan Marrero Curbelo and Rafael Giotis in the ITF Men Kayseri, originally scheduled for June 18, 2026 at 3:00AM ET. This market will resolve to 'Ivan Marrero Curbelo' if Ivan Marrero Curbelo advances against Rafael Giotis. This market will resolve to 'Rafael Giotis' if Rafael Giotis advances against Ivan Marrero Curbelo. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Ivan Marrero Curbelo and Rafael Giotis in the ITF Men Kayseri, originally scheduled for June 18, 2026 at 3:00AM ET. This market will resolve to 'Ivan Marrero Curbelo' if Ivan Marrero Curbelo advances against Rafael Giotis. This market will resolve to 'Rafael Giotis' if Rafael Giotis advances against Ivan Marrero Curbelo. 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 International Tennis Federation (ITF). 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 protect their margin, while prediction markets aggregate the beliefs of traders risking real capital on outcomes. This market may show higher or lower implied probabilities than traditional sportsbooks, depending on whether informed traders see value the books have missed. Comparing the two can reveal where consensus differs and highlight potential edges for sharp bettors.
On Polymarket, traders set prices by buying and selling outcome shares in an automated market maker, with the current price reflecting the aggregate belief of all participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The probability displayed is derived from the ratio of shares held and the liquidity pool depth, meaning larger trades can move prices more significantly when liquidity is thin. As more traders enter or exit positions, prices adjust continuously, allowing you to see in real time how the market is repricing the match based on incoming news or shifting sentiment.
This market resolves around Jun 25, 2026, once the tennis match has concluded and the result is verifiable from credible public sources. The outcome will reflect the official winner of the ITF Kayseri event between these two players. Until that point, prices will fluctuate based on trader expectations, pre-match analysis, player news, and any other factors that influence perceived likelihood of each outcome.
Several catalysts could shift prices before resolution. Player injury reports or withdrawal announcements would trigger sharp moves, as would recent tournament results or head-to-head record updates. Changes in court conditions, weather forecasts, or draw positioning in the broader ITF event could also influence trader positioning. Social media sentiment, expert commentary, or betting action from respected accounts may sway the crowd. Finally, any official updates from the tournament organizers or news about either player's form in the days leading up to the match could prompt significant repricing.