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: Jul 21, 1:30 PM EST
Polymarket
This market refers to the tennis match between Isabella Barrera Aguirre and Mell Elizabeth Reasco Gonzalez in the ITF Women Sao Paulo, originally scheduled for July 14, 2026 at 1:30PM ET. This market will resolve to 'Isabella Barrera Aguirre' if Isabella Barrera Aguirre advances against Mell Elizabeth Reasco Gonzalez. This market will resolve to 'Mell Elizabeth Reasco Gonzalez' if Mell Elizabeth Reasco Gonzalez advances against Isabella Barrera Aguirre. 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 Isabella Barrera Aguirre and Mell Elizabeth Reasco Gonzalez in the ITF Women Sao Paulo, originally scheduled for July 14, 2026 at 1:30PM ET. This market will resolve to 'Isabella Barrera Aguirre' if Isabella Barrera Aguirre advances against Mell Elizabeth Reasco Gonzalez. This market will resolve to 'Mell Elizabeth Reasco Gonzalez' if Mell Elizabeth Reasco Gonzalez advances against Isabella Barrera Aguirre. 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 reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and protect their margin, while prediction markets aggregate the beliefs of traders risking real capital on outcomes. This market may show higher or lower implied probabilities than traditional sportsbooks, depending on whether informed traders see value the books have missed. Comparing the two can reveal where consensus differs and help you identify potential mispricings before the match begins.
On Polymarket, this market is priced through an automated market maker that adjusts odds based on the ratio of shares held for each outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders buy and sell shares directly against the liquidity pool, and the price moves continuously as positions shift. Higher trading volume typically narrows the spread between bid and ask prices, making it cheaper to enter or exit a position. The mechanism ensures transparent, real-time pricing without a central counterparty setting the odds.
This market resolves around Jul 21, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will reflect which player wins the ITF Sao Paulo event, confirmed through official tournament records or reputable sports data sources. Until that point, traders can continue to buy and sell shares as new information emerges. Resolution is automatic once the event is finalized and the winning outcome is recorded.
Several factors may shift trader sentiment before the match plays out. Recent performance trends, head-to-head records, and ranking changes for either player can trigger price movements as new data surfaces. Injury reports, weather conditions at the venue, or court surface adjustments may also influence expectations. Pre-match commentary from analysts and shifts in betting patterns at traditional sportsbooks can signal where informed money is flowing. Real-time match updates—if available during play—would likely cause sharp repricing as traders react to live performance.