TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 15, 11:30 AM EST
Polymarket
This market refers to the tennis match between Amandine Hesse and Mayar Sherif in the Contrexeville, originally scheduled for July 8, 2026 at 11:30AM ET. This market will resolve to 'Amandine Hesse' if Amandine Hesse advances against Mayar Sherif. This market will resolve to 'Mayar Sherif' if Mayar Sherif advances against Amandine Hesse. 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 Amandine Hesse and Mayar Sherif in the Contrexeville, originally scheduled for July 8, 2026 at 11:30AM ET. This market will resolve to 'Amandine Hesse' if Amandine Hesse advances against Mayar Sherif. This market will resolve to 'Mayar Sherif' if Mayar Sherif advances against Amandine Hesse. 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 like this one are driven by traders seeking to profit on accurate forecasts. Prediction markets can sometimes offer sharper, more efficient pricing because participants have real money at stake and no house edge to overcome. However, sportsbooks may move faster on breaking news or injury reports. Comparing this market's odds to major sportsbooks can reveal valuable discrepancies and help you identify where the crowd's conviction differs most.
On Polymarket, traders set prices by buying and selling outcome shares in an automated market maker system. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each share represents a claim on one player's victory, and the price reflects the collective probability the market assigns. When more traders buy Hesse shares, her price rises and Sherif's falls proportionally, since the two outcomes must sum to 100%. This continuous repricing mechanism ensures the market stays efficient and responsive to new information. Liquidity and trading volume directly influence how quickly prices adjust to breaking developments.
This market resolves around Jul 15, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome is determined by the official match result—whichever player wins the contest will trigger the corresponding payout. No ambiguity exists in tennis outcomes; the winner is clear from the final score. Traders holding shares in the winning player receive their payout, while losing shares expire worthless. The resolution process is straightforward and tied directly to the match's official conclusion.
Several factors can shift odds before the match begins. Injury reports or fitness concerns about either player will trigger immediate repricing, as will changes in court conditions or surface preference data. Recent tournament performance, head-to-head records, and ranking movements often influence trader positioning. Media coverage highlighting one player's form or momentum can sway sentiment quickly. Betting action from sharp bettors or syndicates may also move the line as they deploy capital. Weather forecasts closer to match day and any last-minute lineup or scheduling changes will likely drive final adjustments in this market's pricing.