TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 22, 3:50 AM EST
Polymarket
This market refers to the tennis match between Belle Thompson and Tori Russell in the ITF Women Brisbane, originally scheduled for July 21, 2026 at 11:00PM ET. This market will resolve to 'Belle Thompson' if Belle Thompson advances against Tori Russell. This market will resolve to 'Tori Russell' if Tori Russell advances against Belle Thompson. 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 Belle Thompson and Tori Russell in the ITF Women Brisbane, originally scheduled for July 21, 2026 at 11:00PM ET. This market will resolve to 'Belle Thompson' if Belle Thompson advances against Tori Russell. This market will resolve to 'Tori Russell' if Tori Russell advances against Belle Thompson. 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 pricing mechanisms. Sportsbooks set lines to balance their book and manage risk, while prediction markets like this one derive prices directly from trader supply and demand. Prediction markets can sometimes offer sharper, more efficient pricing because they aggregate dispersed information from many participants. However, sportsbook odds may occasionally lead on breaking news or injury reports. Comparing both sources helps bettors identify value and understand how different venues assess the same matchup.
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 purchase or sell shares representing each possible outcome, and the cumulative volume and order flow determine the current odds. As more capital flows toward one outcome, the price adjusts upward; conversely, selling pressure lowers it. This continuous repricing mechanism ensures the market reflects the collective belief of all active participants at any given moment.
This market resolves around Jul 29, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official result of the ITF Brisbane event. Until that point, traders can continue to buy and sell shares as new information emerges. Resolution typically occurs within hours of the final score being announced, after which no further trading is permitted and payouts are distributed according to the winning outcome.
Several factors could shift prices before Jul 29, 2026. Player injury reports, recent match results, or changes in seeding or draw position may influence trader sentiment. Court conditions, weather forecasts, and head-to-head records are also closely watched. News about either player's form, confidence, or mental state can trigger rapid repricing. Additionally, if one player advances or is eliminated in earlier rounds, or if notable upsets occur elsewhere in the tournament, traders may reassess the relative strength of both competitors, causing significant volume spikes and price movement.