TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 15, 9:00 AM EST
Polymarket
This market refers to the tennis match between Maria Paulina Perez Garcia and Lourdes Ayala in the ITF Women Rio Claro, originally scheduled for July 8, 2026 at 9:00AM ET. This market will resolve to 'Maria Paulina Perez Garcia' if Maria Paulina Perez Garcia advances against Lourdes Ayala. This market will resolve to 'Lourdes Ayala' if Lourdes Ayala advances against Maria Paulina Perez Garcia. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Maria Paulina Perez Garcia and Lourdes Ayala in the ITF Women Rio Claro, originally scheduled for July 8, 2026 at 9:00AM ET. This market will resolve to 'Maria Paulina Perez Garcia' if Maria Paulina Perez Garcia advances against Lourdes Ayala. This market will resolve to 'Lourdes Ayala' if Lourdes Ayala advances against Maria Paulina Perez Garcia. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Prediction market odds and sportsbook odds often diverge because they serve different purposes and attract different participant bases. Sportsbooks set odds to balance liability and extract margin, while prediction markets aggregate trader beliefs in real time with minimal intermediation. This market may reflect sharper or more volatile pricing than traditional sportsbooks, especially as match day approaches and new information surfaces. Comparing the two can reveal where professional bettors and casual traders disagree on the likely outcome.
On Polymarket, traders set the odds by buying and selling outcome shares in an automated market maker system. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome reflects the ratio of shares held in the liquidity pool, so larger trades move the odds more dramatically than smaller ones. As traders deposit capital and adjust their positions based on news or analysis, the implied probability shifts accordingly. This continuous repricing mechanism ensures the market remains responsive to new information about the match.
This market resolves around Jul 15, 2026, once the ITF Rio Claro match between the two players concludes and the result is verified against credible public sources. The outcome is determined by the official match result—which player wins the contest. No ambiguity exists in the resolution criteria, as tennis matches have a clear winner. Traders should monitor official tournament announcements and reliable sports news outlets to track when the match takes place and settles.
Player form and recent match results are primary catalysts; strong performances in lead-up tournaments can shift odds significantly. Injury reports or withdrawal announcements would trigger sharp repricing, as would changes in court conditions or surface preference. Head-to-head history and ranking shifts also influence trader positioning. Media coverage and expert commentary closer to match day often drive late trading activity. Weather forecasts and last-minute lineup confirmations can create volatility in the final hours before play begins.