TOTAL VOLUME:
$154.4b
24H VOL:
$290,393,159
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,944,100,805
420,493
Markets across
40,511
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 14, 5:35 PM EST
Polymarket
This market refers to the tennis match between Ana Sofia Sanchez and Lourdes Ayala in the W15 Maceio, Main Draw, originally scheduled for October 14, 2026 at 12:30PM ET. This market will resolve to 'Ana Sofia Sanchez' if Ana Sofia Sanchez advances against Lourdes Ayala. This market will resolve to 'Lourdes Ayala' if Lourdes Ayala advances against Ana Sofia Sanchez. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 28, 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 Ana Sofia Sanchez and Lourdes Ayala in the W15 Maceio, Main Draw, originally scheduled for October 14, 2026 at 12:30PM ET. This market will resolve to 'Ana Sofia Sanchez' if Ana Sofia Sanchez advances against Lourdes Ayala. This market will resolve to 'Lourdes Ayala' if Lourdes Ayala advances against Ana Sofia Sanchez. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 28, 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 wisdom of the crowd, and can differ from traditional sportsbook odds. Sportsbooks set lines based on their own models and need to account for profit margins, while this market is driven purely by traders' beliefs. If a significant discrepancy exists, arbitrage opportunities may arise, where traders can profit by simultaneously betting on Polymarket and a sportsbook. However, it's important to remember that both represent probabilities, and neither is guaranteed to be correct.
On Polymarket, this market is priced through a continuous auction mechanism. Traders buy and sell shares representing their belief in the outcome, and the price of each share reflects the implied probability of that outcome occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price adjusts dynamically based on supply and demand, meaning that as more people buy shares in a particular outcome, the price of those shares increases, and vice versa. This creates a market-driven assessment of the event’s probability.
This market resolves around Oct 21, 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 Maceio match between Ana Sofia Sanchez and Lourdes Ayala. The platform will verify the winner through official tournament results and reporting, ensuring an accurate and transparent resolution process. Traders will then be able to claim their winnings or adjust their positions based on the final outcome.
Several factors could influence the trading activity in this market. Any news regarding player form, injuries, or changes in playing conditions could shift the probabilities. Unexpected upsets in other matches involving these players, or broader trends in the W15 Maceio tournament, might also impact trading volume and prices. Public sentiment, reflected in social media or expert analysis, could also play a role, as traders react to new information and adjust their predictions accordingly.