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 22, 6:37 PM EST
Polymarket
This market refers to the tennis match between Nauhany Vitoria Leme Da Silva and Marjorie Souza in the ITF Women Vacaria, originally scheduled for July 22, 2026 at 9:00AM ET. This market will resolve to 'Nauhany Vitoria Leme Da Silva' if Nauhany Vitoria Leme Da Silva advances against Marjorie Souza. This market will resolve to 'Marjorie Souza' if Marjorie Souza advances against Nauhany Vitoria Leme Da Silva. 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 Nauhany Vitoria Leme Da Silva and Marjorie Souza in the ITF Women Vacaria, originally scheduled for July 22, 2026 at 9:00AM ET. This market will resolve to 'Nauhany Vitoria Leme Da Silva' if Nauhany Vitoria Leme Da Silva advances against Marjorie Souza. This market will resolve to 'Marjorie Souza' if Marjorie Souza advances against Nauhany Vitoria Leme Da Silva. 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 events differently because they operate under distinct incentive structures. Sportsbooks set odds to balance their book and lock in profit margins, while prediction markets rely on traders to discover prices through open buying and selling. This market often reflects real-time consensus from a diverse crowd of participants, which can diverge from sportsbook lines, especially as new information emerges. Comparing the two can reveal where professional oddsmakers and decentralized traders disagree on the likely outcome.
On Polymarket, this market is priced through an automated market maker that converts trader activity into continuous odds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Shares representing each outcome trade between 0 and 1 dollar, with the price reflecting the implied probability that traders assign to the result. As more capital flows into one outcome, its price rises and the opposing outcome's price falls, ensuring the market stays balanced and responsive to new information or sentiment shifts.
This market resolves around Jul 29, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on which player wins the match, with the winning outcome paying out and the losing outcome expiring worthless. Traders holding shares in the correct outcome at resolution receive their payout, while those on the wrong side lose their stake.
Several factors could shift trader conviction before the match takes place. Recent performance data, head-to-head records, player injuries or withdrawals, and court surface conditions are all relevant signals. Media coverage, expert analysis, and betting activity on traditional sportsbooks can also influence how prediction market traders reassess their positions. Any announcement affecting either player's fitness or readiness in the days leading up to the event would likely trigger repricing as new information reaches the market.