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 17, 11:00 AM EST
Polymarket
This market refers to the tennis match between Mananchaya Sawangkaew and Mary Stoiana in the Newport, originally scheduled for July 10, 2026 at 11:00AM ET. This market will resolve to 'Mananchaya Sawangkaew' if Mananchaya Sawangkaew advances against Mary Stoiana. This market will resolve to 'Mary Stoiana' if Mary Stoiana advances against Mananchaya Sawangkaew. 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 Mananchaya Sawangkaew and Mary Stoiana in the Newport, originally scheduled for July 10, 2026 at 11:00AM ET. This market will resolve to 'Mananchaya Sawangkaew' if Mananchaya Sawangkaew advances against Mary Stoiana. This market will resolve to 'Mary Stoiana' if Mary Stoiana advances against Mananchaya Sawangkaew. 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 manage risk, while prediction markets aggregate the beliefs of traders risking real capital on outcomes. This market may show different implied probabilities than traditional sports betting sites, especially if one venue has sharper information flow or higher trading volume. Comparing the two can reveal where consensus is strongest or where outlier views persist.
On Polymarket, this market is priced through an automated market maker that calculates odds based on the ratio of shares held in each outcome's pool. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders buy or sell shares to express their view, and the price adjusts dynamically as the pool composition changes. Higher trading volume typically narrows spreads and improves price accuracy, while lower volume can widen the gap between bid and ask prices, making large trades more costly.
This market resolves around Jul 17, 2026, once the match concludes and the winner is verifiable from credible public reporting. The outcome is determined by the official result of the tennis match between the two players. Until that point, traders can continue to buy and sell shares as new information—such as player form, injury updates, or head-to-head records—becomes available and influences market prices.
Key catalysts include recent performance trends, injury announcements, court surface preferences, and head-to-head history between the players. Weather conditions on match day, seeding or ranking changes, and any public statements from either player or their coaching team can shift trader sentiment. Tournament momentum—how each player has fared in earlier rounds—often drives late-stage repricing. Significant betting action from sharp traders or sudden shifts in social media discussion may also trigger rapid price swings as the match approaches.