TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 16, 9:00 AM EST
Polymarket
This market refers to the tennis match between Maria Herazo and Maria Paulina Perez Garcia in the ITF Women Rio Claro, originally scheduled for July 9, 2026 at 9:00AM ET. This market will resolve to 'Maria Herazo' if Maria Herazo advances against Maria Paulina Perez Garcia. This market will resolve to 'Maria Paulina Perez Garcia' if Maria Paulina Perez Garcia 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 Maria Paulina Perez Garcia in the ITF Women Rio Claro, originally scheduled for July 9, 2026 at 9:00AM ET. This market will resolve to 'Maria Herazo' if Maria Herazo advances against Maria Paulina Perez Garcia. This market will resolve to 'Maria Paulina Perez Garcia' if Maria Paulina Perez Garcia 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 market odds and sportsbook odds often diverge because they reflect different incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets are driven by trader consensus and real-money risk. This market aggregates beliefs from many independent participants, which can sometimes surface information or sentiment that traditional oddsmakers have not yet fully priced in. Comparing the two can reveal where the crowd sees value or where sharp bettors are positioning ahead of the match.
On Polymarket, traders set prices 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. Each share represents a claim on one possible result, and the price reflects the collective probability estimate of all active traders. As new information surfaces—injury reports, recent form, or court conditions—traders adjust their positions, moving prices up or down. The spread between bid and ask prices tightens or widens based on liquidity and trading interest in this particular match.
This market resolves around Jul 16, 2026, once the match concludes and the result is verified against credible public sources. The outcome is determined by which player wins the ITF Rio Claro event, as confirmed through official tournament records or reputable sports reporting. Traders holding shares in the winning outcome will receive their payout, while shares in the losing outcome expire worthless. Resolution typically occurs within hours of the final point, pending confirmation from the event organizers.
Several catalysts can shift prices before the match begins. Player injury announcements or withdrawal news would trigger sharp moves, as would unexpected changes to court conditions or scheduling. Recent tournament results, head-to-head records, or ranking updates can also influence trader positioning. Weather forecasts closer to match day, lineup confirmations, and any late-breaking form reports will likely drive trading activity. Major upsets or surprises in earlier rounds of the tournament may also reshape expectations for how this specific matchup unfolds.