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 26, 6:30 AM EST
Polymarket
This market refers to the tennis match between Sofia Costoulas and Ayla Aksu in the Livesport Prague Open, Qualification, originally scheduled for July 19, 2026 at 6:30AM ET. This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Ayla Aksu. This market will resolve to 'Ayla Aksu' if Ayla Aksu advances against Sofia Costoulas. 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 WTA Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Sofia Costoulas and Ayla Aksu in the Livesport Prague Open, Qualification, originally scheduled for July 19, 2026 at 6:30AM ET. This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Ayla Aksu. This market will resolve to 'Ayla Aksu' if Ayla Aksu advances against Sofia Costoulas. 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 WTA Tour. A consensus of credible reporting may also be used.
Prediction market odds and traditional sportsbook odds often diverge because they reflect different pricing models and trader bases. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets aggregate the collective belief of traders who profit or lose based on accuracy. This market may show materially different implied probabilities than major sportsbooks, especially as match day approaches and new information surfaces. Comparing the two can reveal where the crowd's consensus differs from professional oddsmakers.
On Polymarket, this market is priced through an automated market maker that converts trader orders into real-time odds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Prices move dynamically as participants buy or sell outcome shares, with each trade shifting the implied probability. The system ensures continuous pricing even during low-volume periods, though wider bid-ask spreads may appear when fewer traders are active. All pricing is transparent and visible on the order book, allowing you to execute trades at the best available rates.
This market resolves around Jul 26, 2026, once the Livesport Prague Open qualification match concludes and the result is verifiable from credible public sources. The outcome is determined by the official match result as recorded by the tournament organizers and major tennis databases. No ambiguity typically surrounds qualification-round outcomes, making resolution straightforward. Traders should monitor the official tournament schedule to confirm exact match timing, as delays or rescheduling can affect settlement.
Several factors may shift odds before the match begins: recent head-to-head records, current ranking and form, court surface preference, injury reports, and weather conditions at the venue. Unexpected player withdrawals or late substitutions can trigger sharp repricing. As match day approaches, any official announcements about court assignments or scheduling changes may also influence trader positioning. Live match developments—such as early-set momentum or injury during play—will drive rapid price swings until the final outcome is confirmed.