TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 22, 4:00 AM EST
Polymarket
This market refers to the tennis match between Sandra Samir and Dayeon Back in the ITF Women Darmstadt, originally scheduled for July 15, 2026 at 4:00AM ET. This market will resolve to 'Sandra Samir' if Sandra Samir advances against Dayeon Back. This market will resolve to 'Dayeon Back' if Dayeon Back advances against Sandra Samir. 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 Sandra Samir and Dayeon Back in the ITF Women Darmstadt, originally scheduled for July 15, 2026 at 4:00AM ET. This market will resolve to 'Sandra Samir' if Sandra Samir advances against Dayeon Back. This market will resolve to 'Dayeon Back' if Dayeon Back advances against Sandra Samir. 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 odds to balance liability and lock in margin, while prediction markets are driven by trader consensus and real-money conviction. This market may show higher or lower implied probabilities than major sportsbooks, depending on whether informed traders spot value that bookmakers have missed. Comparing the two can reveal arbitrage opportunities or signal where smart money is positioning itself ahead of the match.
On Polymarket, this market is priced through an automated market maker that adjusts odds continuously as traders buy and sell shares. 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, so larger trades move the odds more sharply than smaller ones. Traders profit by correctly predicting the result, and the platform's fee structure incentivizes active participation. Real-time pricing means you can enter or exit your position at any moment before the market closes.
This market resolves around Jul 22, 2026, once the tennis match concludes and the result is verifiable from credible public sources. The outcome is determined by the official match result—which player wins the ITF Darmstadt event. Traders who correctly predicted the winner receive their payout, while those on the losing side forfeit their stake. Resolution typically occurs within hours of the final point, pending confirmation from the tournament organizers.
Several factors can shift odds before the match begins. Recent player performance, head-to-head records, and injury reports are key catalysts that traders monitor closely. Court surface conditions, weather forecasts, and seeding announcements can also influence probability estimates. Social media sentiment, expert commentary, and betting patterns from other venues may signal where informed money is flowing. Any last-minute lineup changes or player statements could trigger sharp repricing as the market absorbs new information.