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 7, 11:00 AM EST
Polymarket
This market refers to the doubles tennis match between Bianchi/Harper and Milavsky/Sheehy in the Cary, originally scheduled for June 30, 2026 at 11:00AM ET. This market will resolve to 'Bianchi/Harper' if the team of Bianchi/Harper advances against Milavsky/Sheehy. This market will resolve to 'Milavsky/Sheehy' if the team of Milavsky/Sheehy advances against Bianchi/Harper. 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 Bianchi/Harper and Milavsky/Sheehy in the Cary, originally scheduled for June 30, 2026 at 11:00AM ET. This market will resolve to 'Bianchi/Harper' if the team of Bianchi/Harper advances against Milavsky/Sheehy. This market will resolve to 'Milavsky/Sheehy' if the team of Milavsky/Sheehy advances against Bianchi/Harper. 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 trader beliefs through continuous price discovery. This market may show higher or lower implied probabilities than traditional sportsbooks depending on where informed traders believe the true likelihood lies. Comparing the two can reveal gaps in market efficiency and highlight where consensus differs most sharply.
On Polymarket, traders set prices through an automated market maker mechanism, where buying or selling shares moves the odds in real time. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The cost of shares reflects the current probability: lower prices mean lower implied odds, while higher prices indicate stronger conviction. Liquidity pools determine how much price movement occurs with each trade, so larger orders may experience slippage. This continuous pricing model ensures the market remains responsive to new information and trader sentiment throughout the event window.
This market resolves around Jul 7, 2026, once the doubles match concludes and the winner is verified against credible public sources. The outcome will be confirmed based on the official result reported by the tournament organizers or established sports data providers. Until that point, traders can continue to buy and sell shares as new information emerges. Resolution is binary: one team will be declared the victor, and the market will settle accordingly.
Player injuries, recent form, head-to-head records, and court conditions are key catalysts that could shift odds significantly. News about lineup changes or player fitness updates often triggers sharp price movements as traders reassess probabilities. Tournament seeding, draw position, and momentum from earlier rounds may also influence expectations. Close matches in the lead-up to this event, weather delays, or unexpected upsets elsewhere in the draw could prompt traders to adjust their positions and reshape the implied odds.