TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 22, 6:30 AM EST
Polymarket
This market refers to the tennis match between Aruzhan Sagandikova and Polina Starkova in the ITF Women Astana, originally scheduled for July 15, 2026 at 6:30AM ET. This market will resolve to 'Aruzhan Sagandikova' if Aruzhan Sagandikova advances against Polina Starkova. This market will resolve to 'Polina Starkova' if Polina Starkova advances against Aruzhan Sagandikova. 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 Aruzhan Sagandikova and Polina Starkova in the ITF Women Astana, originally scheduled for July 15, 2026 at 6:30AM ET. This market will resolve to 'Aruzhan Sagandikova' if Aruzhan Sagandikova advances against Polina Starkova. This market will resolve to 'Polina Starkova' if Polina Starkova advances against Aruzhan Sagandikova. 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 traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and protect their margin, while prediction markets aggregate decentralized trader beliefs in real time. For this market, prediction market prices may lead or lag sportsbook odds depending on which venue processes new information faster. Comparing the two can reveal value: if one venue prices the outcome significantly higher or lower, sharp traders exploit that gap. Neither is inherently more accurate, but their differences highlight where consensus breaks down.
On Polymarket, this market is priced through an automated market maker that converts trader buy and sell orders into continuous odds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current implied probability reflects the cumulative positions of all participants; as more capital flows toward one outcome, the price adjusts upward, and vice versa. Traders can enter or exit at any time by accepting the quoted price, which incorporates both historical volume and recent order flow. This mechanism ensures prices stay responsive to new information without requiring a traditional order book.
This market resolves around Jul 22, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result, with no ambiguity over who won the contest. Until that point, traders can continue to buy and sell positions, allowing late-breaking information or shifting confidence to move prices right up to resolution. Early resolution is possible if the match is cancelled or postponed under circumstances that trigger an alternative outcome.
Several catalysts could shift prices before Jul 22, 2026. Recent player form, injury reports, head-to-head records, and court conditions at the ITF Astana venue all influence trader conviction. News of lineup changes, coaching adjustments, or external circumstances affecting either competitor's preparation can trigger sharp repricing. Social media sentiment and expert commentary may also sway retail traders. As the match date approaches, any official updates from the tournament organizers—such as scheduling changes or surface modifications—could prompt rapid position adjustments. Volume typically spikes in the final hours before play begins.