TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 16, 4:00 AM EST
Polymarket
This market refers to the tennis match between Gianmarco Ferrari and Sergio Callejon in the Cattolica, originally scheduled for June 9, 2026 at 4:00AM ET. This market will resolve to 'Gianmarco Ferrari' if Gianmarco Ferrari advances against Sergio Callejon. This market will resolve to 'Sergio Callejon' if Sergio Callejon advances against Gianmarco Ferrari. 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 on Polymarket often reflect different risk profiles and participant bases than traditional sportsbooks. While sportsbooks set odds to balance liability and extract margin, prediction markets aggregate decentralized trader beliefs in real time. For the Cattolica: Gianmarco Ferrari vs Sergio Callejon event, comparing Polymarket prices to major sportsbook lines can reveal whether the crowd is more or less confident than professional oddsmakers. Discrepancies may signal arbitrage opportunities or genuine disagreement about match outcomes.
On Polymarket, the Cattolica: Gianmarco Ferrari vs Sergio Callejon event is priced through an automated market maker that converts trader orders into real-time probability quotes. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each outcome contract trades between 0 and 1 USD, with the price directly representing the crowd's estimated likelihood. Traders buy or sell shares to express conviction, and the cumulative order flow determines the current odds. Polymarket's transparent, continuous pricing mechanism allows participants to enter or exit positions at any time before the Jun 16, 2026 resolution deadline.
The Cattolica: Gianmarco Ferrari vs Sergio Callejon market is scheduled to resolve on Jun 16, 2026. Resolution occurs after the event concludes and official results are confirmed. The outcome determination depends on the specific match result and any conditions encoded in the market's terms. Traders should review the full market description and resolution criteria before placing positions to ensure they understand how winning and losing outcomes will be adjudicated.
Key catalysts for the Cattolica: Gianmarco Ferrari vs Sergio Callejon market include recent form and injury updates for both competitors, head-to-head historical performance, training reports, and any public statements about fitness or strategy. Changes in betting volume on external sportsbooks may also signal shifting expectations. Close to the event date, late-breaking news—such as lineup confirmations or weather conditions—can trigger sharp moves. Traders monitoring sports media and official team announcements will be best positioned to anticipate price shifts.