TOTAL VOLUME:
$134.2b
24H VOL:
$129,159,707
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,442,132,418
404,744
Markets across
30,489
events
MATCHED EVENTS:
2,691
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 28, 8:45 AM EST
Polymarket
This market refers to the tennis match between Samira De Stefano and Tamila Gadamauri in the ITF Women Horb, originally scheduled for July 21, 2026 at 8:45AM ET. This market will resolve to 'Samira De Stefano' if Samira De Stefano advances against Tamila Gadamauri. This market will resolve to 'Tamila Gadamauri' if Tamila Gadamauri advances against Samira De Stefano. 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 Samira De Stefano and Tamila Gadamauri in the ITF Women Horb, originally scheduled for July 21, 2026 at 8:45AM ET. This market will resolve to 'Samira De Stefano' if Samira De Stefano advances against Tamila Gadamauri. This market will resolve to 'Tamila Gadamauri' if Tamila Gadamauri advances against Samira De Stefano. 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 trader beliefs directly through price discovery. For this market, comparing the implied probability here to traditional tennis betting odds can reveal where professional bettors and casual traders disagree on the likely winner. Prediction markets sometimes offer sharper pricing due to their transparent, real-time nature, though both venues serve distinct purposes for those tracking the match.
On Polymarket, this market is priced through an automated market maker that converts trader activity into real-time odds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Shares representing each outcome trade continuously, and the price of each share reflects the collective assessment of the match result. As more traders buy or sell a particular outcome, the price adjusts accordingly. This mechanism ensures transparent, friction-free pricing without a traditional bookmaker setting fixed lines, allowing the market to respond dynamically to breaking news or shifting expectations about the players' form.
This market resolves around Jul 28, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result—which player won the ITF Horb event. Until that point, traders can continue to buy and sell shares as new information emerges. Resolution is final once the match is complete and the winner is documented by reliable tennis authorities.
Several factors may shift odds before the match takes place. Recent tournament results, player rankings, head-to-head records, and injury reports can all influence trader sentiment. Court surface conditions, weather forecasts, and any last-minute withdrawals or lineup changes will likely trigger price swings. Media coverage highlighting one player's form or momentum may also sway the market. Additionally, if either competitor's recent performances or fitness status becomes public knowledge, traders will adjust their positions accordingly, causing the implied probability to rise or fall.