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 23, 6:00 PM EST
Polymarket
This market refers to the tennis match between Erika Sema and Cadence Brace in the ITF Women Granby, originally scheduled for July 16, 2026 at 6:00PM ET. This market will resolve to 'Erika Sema' if Erika Sema advances against Cadence Brace. This market will resolve to 'Cadence Brace' if Cadence Brace advances against Erika Sema. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Erika Sema and Cadence Brace in the ITF Women Granby, originally scheduled for July 16, 2026 at 6:00PM ET. This market will resolve to 'Erika Sema' if Erika Sema advances against Cadence Brace. This market will resolve to 'Cadence Brace' if Cadence Brace advances against Erika Sema. 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 International Tennis Federation (ITF). 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 odds to balance their book and lock in profit margins, while prediction markets are driven by trader consensus and real-money risk. This market aggregates the beliefs of many independent traders, which can sometimes offer sharper or earlier signals than traditional sportsbooks, especially for niche events like ITF tennis matches. Neither is inherently more accurate, but comparing the two can reveal where smart money is positioning itself.
On Polymarket, this market is priced through an automated market maker that converts trader orders into real-time probabilities. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders buy or sell outcome shares, and the price adjusts continuously based on supply and demand. The implied probability you see reflects the current consensus among all active traders on the platform. Deeper order books and higher trading volume typically lead to tighter bid-ask spreads and more efficient pricing.
This market resolves around Jul 23, 2026, once the Sema vs Brace match concludes and the result is verifiable from credible public reporting. The outcome is determined by the official match result—which player wins the ITF Granby event. Once the match is complete and confirmed through established tennis databases and official tournament records, the market will settle and traders will receive payouts based on their positions.
Several factors could shift trader positioning before the match. Recent player performance, head-to-head records, court surface preferences, and injury reports are common catalysts. Tournament draws, seeding changes, and pre-match commentary from tennis analysts may also influence sentiment. Weather conditions on match day, player form in warm-up events, and betting action from professional syndicates can create rapid price swings. Social media discussion and mainstream sports coverage of either player can amplify volatility as new information reaches the trading community.