TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
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 Herazo and Ana Filipa Santos in the ITF Women Rio Claro, originally scheduled for July 8, 2026 at 9:00AM ET. This market will resolve to 'Maria Herazo' if Maria Herazo advances against Ana Filipa Santos. This market will resolve to 'Ana Filipa Santos' if Ana Filipa Santos advances against Maria Herazo. 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 Herazo and Ana Filipa Santos in the ITF Women Rio Claro, originally scheduled for July 8, 2026 at 9:00AM ET. This market will resolve to 'Maria Herazo' if Maria Herazo advances against Ana Filipa Santos. This market will resolve to 'Ana Filipa Santos' if Ana Filipa Santos advances against Maria Herazo. 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 markets and traditional sportsbooks price outcomes differently. Sportsbooks set odds to balance their book and lock in profit margins, while prediction markets derive prices from open trading between participants with no built-in house edge. This market aggregates the views of many traders making independent forecasts, often capturing real-time information and shifting sentiment faster than sportsbooks update their lines. Comparing this market's implied probability to sportsbook odds can reveal where the crowd sees edge or where public perception diverges from bookmaker pricing.
On Polymarket, traders set prices by buying and selling outcome shares in an automated market maker model. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each share represents a claim on one player winning, and the price reflects the cumulative bets placed. As more capital flows toward one outcome, its price rises and the competing outcome falls, creating a continuous equilibrium. This mechanism ensures prices adjust instantly to new information and trader conviction, making the market responsive to news, player form, or injury updates leading up to the match.
This market resolves around Jul 15, 2026, once the ITF Rio Claro match concludes and the result is verified against credible public sources. The outcome is determined by which player wins the match in official competition. No ambiguity exists in tennis match results, making resolution straightforward and final. Traders should monitor the tournament schedule and any last-minute changes to ensure they understand the exact timing and conditions under which the market will settle.
Several factors may shift odds before the match begins. Recent player performance, head-to-head records, and ranking changes can influence trader positioning. Injury announcements or withdrawal news would trigger sharp repricing. Court surface conditions, weather forecasts, and tournament draw details may also sway sentiment. Media coverage highlighting one player's form or psychological edge can attract fresh trading activity. Closer to Jul 15, 2026, late-breaking developments such as coaching changes or player statements could prompt final adjustments as traders lock in their views ahead of the event.