TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 5, 10:00 AM EST
Predict
This market refers to the tennis match between Aryna Sabalenka and Naomi Osaka in the Wimbledon WTA, originally scheduled for July 5, 2026 at 6:00AM ET. This market will resolve to 'Aryna Sabalenka' if Aryna Sabalenka advances against Naomi Osaka. This market will resolve to 'Naomi Osaka' if Naomi Osaka advances against Aryna Sabalenka. 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 Aryna Sabalenka and Naomi Osaka in the Wimbledon WTA, originally scheduled for July 5, 2026 at 6:00AM ET. This market will resolve to 'Aryna Sabalenka' if Aryna Sabalenka advances against Naomi Osaka. This market will resolve to 'Naomi Osaka' if Naomi Osaka advances against Aryna Sabalenka. 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 markets and traditional sportsbooks price events differently because they operate under distinct incentive structures. Sportsbooks set odds to balance their book and lock in profit margins, while prediction markets aggregate the beliefs of many independent traders competing for returns. This market reflects what traders collectively believe will happen, which often diverges from sportsbook lines because there is no house margin. Comparing the two can reveal where public opinion and professional oddsmakers diverge on this matchup.
On Predict, traders buy and sell shares tied to each outcome, and the price of those shares reflects the probability assigned by the market. On Predict, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders back one player, that outcome's price rises, and vice versa. The mechanism is transparent: you see the current bid-ask spread and can execute trades instantly at posted prices. This continuous price discovery means the odds adjust in real time as new information or sentiment emerges.
This market resolves around Jul 5, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome is determined by which player wins the match according to official Wimbledon records. Until that point, traders can adjust positions as the event draws closer and new developments—such as player form, injuries, or court conditions—become known. Resolution is automatic once the match result is confirmed.
Several factors could shift trader conviction before the match. Recent tournament performance by either player, injury reports or fitness updates, head-to-head history on grass courts, and seeding or draw position all influence perception. Pre-match commentary from analysts and betting syndicates may also sway the market. Weather forecasts for the match day, court conditions, and any last-minute withdrawals or upsets in earlier rounds can trigger repricing. Social media sentiment and major news coverage of either player can accelerate moves as well.