TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 16, 12:21 AM EST
Polymarket
This market tracks whether Sloane Stephens will advance against Janice Tjen in their scheduled match at the Guadalajara Open Akron. Currently, Polymarket gives a 100.0% probability to Sloane Stephens winning the match. Resolution will be based on the official results reported at https://www.wtatennis.com/scores. Keep an eye on the match itself, originally scheduled for September 15, 2026 at 12:00PM ET, as the outcome of this contest will determine the market’s resolution.
This market refers to the tennis match between Sloane Stephens and Janice Tjen in the Guadalajara Open Akron, originally scheduled for September 15, 2026 at 12:00PM ET. This market will resolve to 'Sloane Stephens' if Sloane Stephens advances against Janice Tjen. This market will resolve to 'Janice Tjen' if Janice Tjen advances against Sloane Stephens. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 29, 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, potentially offering a different perspective than traditional sportsbooks. Sportsbooks set their lines based on models and internal analysis, while this market aggregates the views of many individual traders. It’s common to see discrepancies between the two, especially before significant events or when new information emerges. Analyzing these differences can be insightful, as prediction markets sometimes identify mispriced outcomes that sportsbooks may have overlooked. However, both sources provide valuable information for anyone following the Stephens vs Tjen match.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome of the Stephens vs Tjen match. The price of these shares directly reflects the probability of that outcome occurring, as determined by supply and demand. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders buy shares in a particular outcome, the price increases, indicating a higher perceived probability. Conversely, increased selling pressure lowers the price. This dynamic pricing ensures the market continually adjusts to new information and trader sentiment.
This market resolves around Sep 22, 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 Sloane Stephens and Janice Tjen. The platform will verify the result against established sports data sources to determine the winning outcome. Traders will then be able to claim their winnings based on the final result and their positions in this market. The resolution process ensures a transparent and accurate settlement.
Several factors could influence the trading activity and therefore the price of shares in this market. Any news regarding player form, injuries, or changes in playing conditions could significantly shift trader sentiment. Unexpected upsets in other matches within the tournament might also affect perceptions of Stephens and Tjen’s chances. Furthermore, major shifts in public opinion, as reflected by analyst predictions or social media buzz, could drive trading volume and price fluctuations. Monitoring these signals will be crucial for anyone looking to trade this market before it resolves.