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 11, 7:15 PM EST
Polymarket
This market refers to the tennis match between Yexin Ma and Lucrezia Stefanini in the ITF Women Cary, originally scheduled for July 4, 2026 at 7:15PM ET. This market will resolve to 'Yexin Ma' if Yexin Ma advances against Lucrezia Stefanini. This market will resolve to 'Lucrezia Stefanini' if Lucrezia Stefanini advances against Yexin Ma. 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 Yexin Ma and Lucrezia Stefanini in the ITF Women Cary, originally scheduled for July 4, 2026 at 7:15PM ET. This market will resolve to 'Yexin Ma' if Yexin Ma advances against Lucrezia Stefanini. This market will resolve to 'Lucrezia Stefanini' if Lucrezia Stefanini advances against Yexin Ma. 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 without a built-in spread. This market's odds may lead or lag sportsbook lines depending on information flow and liquidity depth. Comparing the two can reveal arbitrage opportunities or signal where professional and retail sentiment differ. Both sources offer valuable signals, but prediction markets often excel at incorporating breaking news and real-time conviction shifts.
On Polymarket, this market is priced through an automated market maker (AMM) model where traders buy and sell outcome shares directly against a liquidity pool. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome contract reflects the ratio of reserves in the pool, meaning larger trades move the price more dramatically. Traders profit by correctly predicting the match result and selling their shares at a higher price than they bought. Liquidity providers earn fees from all trades flowing through the pool. This mechanism ensures continuous pricing and allows entry or exit at any time before market resolution.
This market resolves around Jul 11, 2026, once the ITF Cary tennis match between Ma and Stefanini concludes and the result is verifiable from credible public sources. The outcome is determined by the official match winner as recorded by the tournament organizer and confirmed through established sports reporting channels. Early resolution may occur if the match is cancelled or abandoned under tournament rules. Traders holding winning outcome shares receive their payout automatically upon resolution. The exact timing depends on when the match is scheduled and completed.
Key catalysts include recent head-to-head records, player injury reports, court surface conditions, and pre-match rankings or seeding. Weather delays or scheduling changes can shift sentiment as they affect player fatigue and preparation. Live match momentum—breaks of serve, set wins, or injury timeouts—typically drives sharp price movement once play begins. Social media buzz, expert commentary, and betting syndicates entering the market can also trigger volatility. Traders monitor player form, recent tournament results, and any last-minute roster or condition updates that emerge before the opening serve.