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 6, 6:00 AM EST
Polymarket
This market tracks which player will advance from the Wimbledon WTA match between Serena Williams and Maya Joint. On Polymarket, Serena Williams to advance is priced at 100.0%, reflecting overwhelming confidence in the outcome. Resolution will be determined by the official WTA Tennis website. The match was originally scheduled for June 29, 2026 at 6:00 AM ET, with the resolution date estimate set for July 6, 2026, marking the end of the betting window for this first-round encounter.
This market refers to the tennis match between Serena Williams and Maya Joint in the Wimbledon WTA, originally scheduled for June 29, 2026 at 6:00AM ET. This market will resolve to 'Serena Williams' if Serena Williams advances against Maya Joint. This market will resolve to 'Maya Joint' if Maya Joint advances against Serena Williams. 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 odds to balance their book and lock in profit margins, while prediction markets are driven by trader consensus on true probability. This market may show a different implied probability than traditional sports betting sites, especially if one venue has sharper or more active traders. Comparing the two can reveal value opportunities—if prediction market odds seem out of line with sportsbook pricing, it may signal mispricing or an edge worth exploring before resolution.
On Polymarket, traders set prices by buying and selling outcome shares in an automated market maker (AMM) system. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more capital flowing into one outcome, the higher its price climbs, and vice versa. Prices reflect the collective belief of all active traders at any given moment. As new information surfaces—such as player fitness updates or court conditions—traders adjust their positions, moving the odds in real time. This continuous repricing mechanism ensures the market stays responsive to breaking news and evolving expectations.
This market resolves around Jul 6, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result—which player wins the encounter. Until that point, traders can continue to buy and sell shares as odds fluctuate. Resolution is final once the event is officially recorded, and all positions settle according to the confirmed winner.
Several catalysts could shift odds before the match begins. Injury announcements or withdrawal news would trigger sharp repricing. Recent tournament performance, head-to-head records, and surface-specific form all influence trader sentiment. Court assignments and weather forecasts closer to the event date may also matter. Media coverage, betting syndicates entering the market, and shifts in public perception can drive volume spikes and price swings. Even minor updates—such as practice session reports or player statements—can nudge the odds as traders reassess win probability.