TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 28, 6:00 AM EST
Polymarket
This market refers to the doubles tennis match between Gonzalez/Reyes and Silva/Pereira in the Estoril Open, originally scheduled for July 21, 2026 at 6:00AM ET. This market will resolve to 'Gonzalez/Reyes' if the team of Gonzalez/Reyes advances against Silva/Pereira. This market will resolve to 'Silva/Pereira' if the team of Silva/Pereira advances against Gonzalez/Reyes. 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 doubles tennis match between Gonzalez/Reyes and Silva/Pereira in the Estoril Open, originally scheduled for July 21, 2026 at 6:00AM ET. This market will resolve to 'Gonzalez/Reyes' if the team of Gonzalez/Reyes advances against Silva/Pereira. This market will resolve to 'Silva/Pereira' if the team of Silva/Pereira advances against Gonzalez/Reyes. 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 manage risk, while prediction markets aggregate the collective beliefs of traders who have real money at stake. This market may show higher or lower implied probabilities than traditional sportsbooks, depending on whether informed traders see value in the consensus. Comparing the two can reveal where smart money disagrees with conventional betting lines.
On Polymarket, this market is priced through an automated market maker that converts trader activity into real-time odds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The contract price reflects the cumulative bets placed by all participants, with each trade adjusting the implied probability. As traders buy or sell shares, the price moves to balance supply and demand. This continuous pricing mechanism ensures transparent, up-to-the-minute odds that respond immediately to new information or shifts in trader conviction.
This market resolves around Jul 28, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result and the verified winner of the doubles contest. Until that point, traders can continue to buy and sell shares as new information emerges. Resolution occurs automatically once the event is finalized and confirmed through established sports data sources.
Several factors may shift trader sentiment before resolution. Injury announcements or player withdrawals could significantly alter perceived match odds. Recent form, head-to-head records, and court conditions at the venue may influence how traders reassess each team's chances. Media coverage, expert analysis, and betting action from other venues can also sway the market. As the match date approaches, any breaking news about player fitness or tactical changes could trigger rapid repricing of this market.