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 20, 5:00 AM EST
Polymarket
This market refers to the tennis match between Polina Kudermetova and Maria Sakkari in the Athens Open, originally scheduled for July 13, 2026 at 5:00AM ET. This market will resolve to 'Polina Kudermetova' if Polina Kudermetova advances against Maria Sakkari. This market will resolve to 'Maria Sakkari' if Maria Sakkari advances against Polina Kudermetova. 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 Polina Kudermetova and Maria Sakkari in the Athens Open, originally scheduled for July 13, 2026 at 5:00AM ET. This market will resolve to 'Polina Kudermetova' if Polina Kudermetova advances against Maria Sakkari. This market will resolve to 'Maria Sakkari' if Maria Sakkari advances against Polina Kudermetova. 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 participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets aggregate the beliefs of traders risking real capital on outcomes. This market may show different implied probabilities than what you'd find at a conventional sportsbook, particularly as new information emerges closer to the event. Comparing the two can reveal where the crowd sees edge or where consensus is building.
On Polymarket, this market is priced through an automated market maker that converts trader activity into real-time odds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Shares representing each outcome trade continuously, and the price of each share reflects the collective assessment of all traders participating. As more capital flows into one outcome, its price rises and the opposing outcome's price falls, creating a self-balancing system. The spread between bid and ask prices tightens as volume increases, rewarding active traders with better execution.
This market resolves around Jul 20, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will reflect which player wins the contest. Until that point, traders can continue to buy and sell shares as odds shift with new developments, player news, or betting sentiment. Resolution is final once confirmed, and all positions settle according to the verified result.
Several factors may shift odds before the match takes place. Injury reports or fitness updates on either player can trigger sharp moves, as can recent tournament performance or head-to-head history. Changes in seeding, court conditions, or draw announcements may also influence trader positioning. Betting action from professional syndicates or sudden shifts in public sentiment can accelerate price swings. Close to the event date, last-minute lineup confirmations or warm-up match results often drive final repricing as traders lock in their views.