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 22, 7:24 AM EST
Polymarket
This market refers to the doubles tennis match between Arias/Zeballos and Azkara/Erel in the Segovia, originally scheduled for July 21, 2026 at 5:00AM ET. This market will resolve to 'Arias/Zeballos' if the team of Arias/Zeballos advances against Azkara/Erel. This market will resolve to 'Azkara/Erel' if the team of Azkara/Erel advances against Arias/Zeballos. 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 Arias/Zeballos and Azkara/Erel in the Segovia, originally scheduled for July 21, 2026 at 5:00AM ET. This market will resolve to 'Arias/Zeballos' if the team of Arias/Zeballos advances against Azkara/Erel. This market will resolve to 'Azkara/Erel' if the team of Azkara/Erel advances against Arias/Zeballos. 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 operate under different incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets reflect the aggregated beliefs of traders who have real money at stake on accuracy. This market aggregates the views of many independent participants, which can sometimes surface insights that traditional sportsbooks have not yet fully priced in. Comparing the two can reveal where consensus differs, though both aim to forecast the same underlying event outcome.
On Polymarket, this market is priced through an automated market maker mechanism where traders buy and sell shares corresponding to each outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current price of each share reflects the probability traders assign to that result; as demand shifts, prices adjust automatically. Traders profit by buying low and selling high, or by correctly predicting the outcome and holding until resolution. This continuous price discovery process means the odds you see represent the live consensus of all active traders on the platform.
This market resolves around Jul 28, 2026, once the match concludes and the result is verifiable from credible public sources. The outcome will reflect which team wins the doubles competition. Until that point, traders can continue to buy and sell shares based on their expectations. Resolution is final once confirmed, and all positions are settled according to the actual result of the event.
Several factors could shift trader sentiment before Jul 28, 2026. Player injuries, recent form changes, or head-to-head matchup history could prompt repricing as new information emerges. Betting activity from professional traders or sharp money often signals conviction and can move odds significantly. Media coverage, expert commentary, or updates on player fitness and court conditions may also influence expectations. Large trades by informed participants can cascade into broader price movements, so monitoring volume spikes and sudden shifts in the odds can reveal where the market is reassessing its forecast.