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 18, 10:30 AM EST
Polymarket
This market refers to the tennis match between Mayar Sherif and Leolia Jeanjean in the Contrexeville, originally scheduled for July 11, 2026 at 10:30AM ET. This market will resolve to 'Mayar Sherif' if Mayar Sherif advances against Leolia Jeanjean. This market will resolve to 'Leolia Jeanjean' if Leolia Jeanjean advances against Mayar Sherif. 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 Mayar Sherif and Leolia Jeanjean in the Contrexeville, originally scheduled for July 11, 2026 at 10:30AM ET. This market will resolve to 'Mayar Sherif' if Mayar Sherif advances against Leolia Jeanjean. This market will resolve to 'Leolia Jeanjean' if Leolia Jeanjean advances against Mayar Sherif. 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 lines to balance action and lock in profit margins, while prediction markets aggregate the beliefs of traders risking real capital on outcomes. This market aggregates the collective forecast of participants who profit only if their prediction is correct, creating a direct financial incentive for accuracy. Many analysts view prediction market prices as a complementary signal to traditional sportsbook lines, especially when the two diverge significantly on high-stakes events.
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. Traders buy and sell shares representing each outcome, and the price of each share reflects the implied probability at any given moment. As more capital flows into one outcome, its price rises and the competing outcome's price falls, keeping the two probabilities in balance. This continuous repricing mechanism ensures the market price stays responsive to new information and trader conviction throughout the event window.
This market resolves around Jul 18, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The winning outcome will be determined by the official result of the match as documented by recognized tennis authorities and sports news sources. Traders should monitor the event closely as the resolution date approaches to ensure they understand how the final score or result will be recorded. Once the match concludes and the result is confirmed, this market will settle accordingly.
Several factors could shift trader positioning before resolution. Player injury reports, recent performance trends, and head-to-head records may influence confidence in each outcome. Court conditions, weather, and tournament momentum can also sway expectations. News about player form, fitness, or mental readiness often triggers repricing as new information reaches the market. Close matches or unexpected upsets in related tournaments may prompt traders to reassess their forecasts. Real-time match developments—such as early set results or momentum shifts—typically drive the most dramatic price movements as the event unfolds.