TOTAL VOLUME:
$134.2b
24H VOL:
$143,246,370
24H TRANSACTIONS:
2,403,290,006
OPEN INTEREST:
$1,452,035,386
405,032
Markets across
30,543
events
MATCHED EVENTS:
2,690
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 19, 7:30 AM EST
Polymarket
This market refers to the tennis match between Claire Liu and Maria Sara Popa in the Iasi Open, Qualification, originally scheduled for July 12, 2026 at 7:30AM ET. This market will resolve to 'Claire Liu' if Claire Liu advances against Maria Sara Popa. This market will resolve to 'Maria Sara Popa' if Maria Sara Popa advances against Claire Liu. 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 Claire Liu and Maria Sara Popa in the Iasi Open, Qualification, originally scheduled for July 12, 2026 at 7:30AM ET. This market will resolve to 'Claire Liu' if Claire Liu advances against Maria Sara Popa. This market will resolve to 'Maria Sara Popa' if Maria Sara Popa advances against Claire Liu. 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 sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set odds to balance liability and extract a margin, while prediction markets aggregate decentralized trader beliefs in real time. This market may show higher or lower implied probability than traditional sportsbooks, depending on whether informed traders see value the books have missed. Comparing the two can reveal arbitrage opportunities or signal where smart money is positioning ahead of the event.
On Polymarket, this market is priced through an automated market maker that allows traders to buy and sell shares representing each possible outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome reflects the cumulative bets placed; as more traders back one result, its cost rises and its implied probability increases. Liquidity and trading volume directly influence how tight the spreads are and how quickly prices respond to new information. The platform's transparent order flow means you can see exactly how the market is repricing in real time.
This market resolves around Jul 19, 2026, once the qualification match concludes and the result is verifiable from credible public reporting. The outcome is determined by the official match result—which player advances from the qualification round. Once the event is confirmed through reliable sources, the market settles automatically and traders receive payouts based on their positions. Timing may vary slightly depending on when official confirmation is published.
Several factors could shift odds before the match begins. Player injury reports, recent form and head-to-head records, court surface conditions, and any last-minute withdrawals would all influence trader positioning. News about either competitor's fitness, mental state, or preparation could trigger repricing. Additionally, if one player is favored by professional analysts or sportsbooks, that consensus may gradually pull the prediction market in the same direction. Close to match time, late-breaking information about conditions or player status typically generates the most volatility.