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 21, 5:30 PM EST
Polymarket
This market refers to the tennis match between Giovana Schincariol Delatorre Barbosa and Marjorie Souza in the ITF Women Sao Paulo, originally scheduled for July 14, 2026 at 5:30PM ET. This market will resolve to 'Giovana Schincariol Delatorre Barbosa' if Giovana Schincariol Delatorre Barbosa advances against Marjorie Souza. This market will resolve to 'Marjorie Souza' if Marjorie Souza advances against Giovana Schincariol Delatorre Barbosa. 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 Giovana Schincariol Delatorre Barbosa and Marjorie Souza in the ITF Women Sao Paulo, originally scheduled for July 14, 2026 at 5:30PM ET. This market will resolve to 'Giovana Schincariol Delatorre Barbosa' if Giovana Schincariol Delatorre Barbosa advances against Marjorie Souza. This market will resolve to 'Marjorie Souza' if Marjorie Souza advances against Giovana Schincariol Delatorre Barbosa. 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 distributed trader beliefs in real time. This market aggregates the collective forecast of independent traders rather than a single bookmaker's risk management. Comparing the two can reveal where professional oddsmakers and decentralized market participants disagree, potentially highlighting undervalued or overvalued outcomes based on public information.
On Polymarket, this market is priced through an automated market maker mechanism where traders buy and sell shares representing each outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each share reflects the current probability assigned by the market; as traders adjust their positions, prices move dynamically. You can enter or exit at any time during the trading window, with the spread and depth determined by cumulative order flow. This continuous pricing model ensures transparent, real-time discovery of what participants believe will happen.
This market resolves around Jul 21, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The winning outcome is determined by the actual result of the match as documented by official tournament records and reputable sports sources. Traders holding shares in the correct outcome receive their payout once resolution is finalized. Until that point, prices will fluctuate based on pre-match analysis, player form, and any breaking news that might influence expectations.
Several factors could shift prices before resolution. Player injuries, recent match results, or changes in ranking points could alter perceived chances. Court conditions, weather forecasts, or head-to-head history may prompt traders to reassess probabilities. News about player fitness, coaching changes, or tournament-specific circumstances could trigger significant repricing. Late-breaking developments in the days leading up to the match often drive the largest moves, as new information becomes available and traders update their positions accordingly.