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 27, 4:00 AM EST
Polymarket
This market refers to the tennis match between Alastair Gray and Akira Santillan in the Segovia, originally scheduled for July 20, 2026 at 4:00AM ET. This market will resolve to 'Alastair Gray' if Alastair Gray advances against Akira Santillan. This market will resolve to 'Akira Santillan' if Akira Santillan advances against Alastair Gray. 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 Alastair Gray and Akira Santillan in the Segovia, originally scheduled for July 20, 2026 at 4:00AM ET. This market will resolve to 'Alastair Gray' if Alastair Gray advances against Akira Santillan. This market will resolve to 'Akira Santillan' if Akira Santillan advances against Alastair Gray. 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 protect their margin, while prediction markets aggregate the collective belief of traders risking real capital on outcomes. This market may price the fight differently than major sportsbooks, especially if one venue attracts sharper bettors or if new information surfaces closer to the event. Comparing the two can reveal where consensus is strongest and where outlier views persist.
On Polymarket, this market is priced through an automated market maker that adjusts odds continuously as traders buy and sell outcome shares. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome reflects the probability implied by recent trades, so larger orders move the odds more dramatically than small ones. You can enter limit or market orders to express your view, and the platform's fee structure is deducted from your winnings if your prediction is correct. Real-time price charts help you spot momentum and timing opportunities.
This market resolves around Jul 27, 2026, once the fight concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official fight result—whether Gray or Santillan wins by decision, knockout, or technical decision. Any disputes or unusual circumstances will be evaluated against standard boxing rules and sanctioning body determinations. Until that point, odds will continue to shift as fight day approaches and new information becomes available.
Several factors could shift odds before the fight: fighter injuries or withdrawals, training camp reports, weigh-in results, and expert analysis published in the lead-up. Changes in betting action on traditional sportsbooks often ripple into prediction markets as traders react to shifting consensus. Media coverage highlighting one fighter's recent form or highlighting matchup dynamics can also trigger repricing. Closer to Jul 27, 2026, late-breaking news—such as unexpected rule changes or venue issues—may cause sharp moves. Monitor fighter social media and boxing news outlets for catalysts.