TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 6, 7:12 AM EST
Polymarket
This market refers to the tennis match between Marianna Argyrokastriti and Ashley Lahey in the W15 Badalona, Main Draw, originally scheduled for September 6, 2026 at 4:00AM ET. This market will resolve to 'Marianna Argyrokastriti' if Marianna Argyrokastriti advances against Ashley Lahey. This market will resolve to 'Ashley Lahey' if Ashley Lahey advances against Marianna Argyrokastriti. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 20, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Marianna Argyrokastriti and Ashley Lahey in the W15 Badalona, Main Draw, originally scheduled for September 6, 2026 at 4:00AM ET. This market will resolve to 'Marianna Argyrokastriti' if Marianna Argyrokastriti advances against Ashley Lahey. This market will resolve to 'Ashley Lahey' if Ashley Lahey advances against Marianna Argyrokastriti. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 20, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Prediction market odds often reflect the collective wisdom of a diverse group of traders, potentially offering a different perspective than traditional sportsbooks. Sportsbooks set their lines based on statistical models and expert analysis, while this market represents the aggregated predictions of individuals incentivized to be accurate. It’s common to see discrepancies between the two, especially when subjective factors or less-publicly available information are at play. Comparing the two can offer a more nuanced understanding of the likely outcome of the Argyrokastriti vs Lahey match.
On Polymarket, this market is priced through a continuous auction mechanism. Traders buy and sell shares representing their belief in the probability of a particular outcome. As more shares are traded, the price adjusts to reflect the changing consensus. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of a share directly corresponds to the implied probability of that outcome occurring. Higher demand for a share increases its price, signaling greater confidence in that outcome, and vice versa. This dynamic pricing ensures that the market reflects the most up-to-date predictions of participants.
This market resolves around Sep 13, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result of the W15 Badalona match between Marianna Argyrokastriti and Ashley Lahey. The platform will identify the winner (or a draw, if applicable) based on publicly available sources, such as official tournament websites or recognized sports news outlets. Traders holding shares in the winning outcome will receive a payout, while those holding shares in losing outcomes will forfeit their stake.
Several factors could influence trading activity and shift the odds in this market. News regarding player form, injury updates for either Argyrokastriti or Lahey, or changes in playing conditions (such as court surface or weather) could all impact predictions. Unexpected results in other matches involving these players, or even broader shifts in public perception, could also lead to changes in the market. Any information that alters the perceived probability of either player winning will likely be reflected in the trading volume and price movements of this market.