TOTAL VOLUME:
$134.2b
24H VOL:
$143,246,370
24H TRANSACTIONS:
2,403,290,006
OPEN INTEREST:
$1,452,035,386
405,032
Markets across
30,543
events
MATCHED EVENTS:
2,690
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 18, 1:14 AM EST
Polymarket
This market tracks whether Peyton Stearns will advance against Sloane Stephens in their scheduled match at the Guadalajara Open Akron. Currently, Polymarket gives a 100.0% probability to Peyton Stearns winning the match. Resolution will be determined by the official results reported on the WTA Tennis website at https://www.wtatennis.com/scores. Keep an eye on the original match schedule for September 17, 2026 at 12:00PM ET, as this is when the outcome will be determined and the market will resolve.
This market refers to the tennis match between Peyton Stearns and Sloane Stephens in the Guadalajara Open Akron, originally scheduled for September 17, 2026 at 12:00PM ET. This market will resolve to 'Peyton Stearns' if Peyton Stearns advances against Sloane Stephens. This market will resolve to 'Sloane Stephens' if Sloane Stephens advances against Peyton Stearns. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 1, 2026, 11:59 PM ET (14 days after the scheduled start), 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 often reflect the wisdom of the crowd, and can differ from those offered by sportsbooks. Sportsbooks set initial lines based on their own analysis, while this market’s odds are driven by the collective predictions of traders. Discrepancies can arise due to differing information, biases, or simply varying interpretations of the players’ form. If a significant difference exists, it may present an opportunity for arbitrage – buying on one venue and selling on the other – though such opportunities are often short-lived as markets adjust.
This market resolves around Sep 24, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Guadalajara Open Akron match between Peyton Stearns and Sloane Stephens. The platform will verify the winner against official tournament results and reporting, ensuring an accurate and transparent resolution process. Traders holding shares in the winning outcome will receive a payout of 1 USDC per share, while those holding shares in the losing outcome will receive 0 USDC.
Several factors could influence the price movement of this market before resolution. Any news regarding player injuries, changes in playing conditions, or updates on their recent performance could shift trader sentiment. Unexpected results in other matches leading up to the Stearns vs Stephens match might also impact perceptions of their relative strengths. Furthermore, significant betting activity or large trades on Polymarket could create short-term price fluctuations, reflecting shifts in confidence among traders.