TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 2, 5:00 AM EST
Polymarket
This market refers to the tennis match between Sergi Perez Contri and Robin Bertrand in the ITF Men Bakio, originally scheduled for June 25, 2026 at 5:00AM ET. This market will resolve to 'Sergi Perez Contri' if Sergi Perez Contri advances against Robin Bertrand. This market will resolve to 'Robin Bertrand' if Robin Bertrand advances against Sergi Perez Contri. 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 Sergi Perez Contri and Robin Bertrand in the ITF Men Bakio, originally scheduled for June 25, 2026 at 5:00AM ET. This market will resolve to 'Sergi Perez Contri' if Sergi Perez Contri advances against Robin Bertrand. This market will resolve to 'Robin Bertrand' if Robin Bertrand advances against Sergi Perez Contri. 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 traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set odds to balance action and lock in profit margins, while prediction markets are driven by trader consensus and real-money risk. This market aggregates the beliefs of thousands of independent traders with financial stakes, which can reveal information gaps or contrarian views that sportsbooks may not yet price in. Comparing the two can highlight where public perception and market-derived probabilities misalign.
On Polymarket, traders set prices through an automated market maker that adjusts odds based on buy and sell volume. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current implied probability reflects the aggregate confidence of all active traders holding positions. As more capital flows into one outcome, the price moves higher; conversely, selling pressure lowers it. This continuous repricing mechanism ensures the market remains responsive to new developments and trader sentiment shifts throughout the trading period.
This market resolves around Jul 2, 2026, once the match concludes and the winner is verified against credible public sources. The outcome is determined by the official result of the ITF Bakio event, confirmed through established tennis reporting channels. Resolution occurs shortly after the match ends, allowing traders to settle their positions based on the verified result. No ambiguity exists in determining a winner in professional tennis, making this a straightforward binary event.
Player form, recent match results, and head-to-head records can shift trader expectations significantly. Injury announcements or withdrawal news would trigger sharp repricing. Court conditions, weather forecasts, and tournament seeding details may also influence odds as traders refine their assessments. Media coverage highlighting one player's momentum or recent upsets in the draw could spark buying or selling waves. Real-time match updates during play will drive the most dramatic price movements as the outcome becomes clearer.