TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 28, 9:00 AM EST
Polymarket
This market refers to the tennis match between Radka Zelnickova and Vivian Wolff in the ITF Women Amstetten, originally scheduled for July 21, 2026 at 9:00AM ET. This market will resolve to 'Radka Zelnickova' if Radka Zelnickova advances against Vivian Wolff. This market will resolve to 'Vivian Wolff' if Vivian Wolff advances against Radka Zelnickova. 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 Radka Zelnickova and Vivian Wolff in the ITF Women Amstetten, originally scheduled for July 21, 2026 at 9:00AM ET. This market will resolve to 'Radka Zelnickova' if Radka Zelnickova advances against Vivian Wolff. This market will resolve to 'Vivian Wolff' if Vivian Wolff advances against Radka Zelnickova. 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 traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and protect their margins, while prediction markets aggregate trader beliefs through real-money positions. For this market, comparing Polymarket odds to major sportsbook lines can reveal whether professional bettors and retail traders see the matchup differently. Prediction markets sometimes lead sportsbooks when informed traders act on early information, making the comparison a useful gauge of where sharper money sits.
On Polymarket, this market is priced through an automated market maker that converts trader buy and sell orders into continuous odds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders purchase shares representing each outcome, and the price of each share reflects the collective probability assigned by the market. As more capital flows into one outcome, its price rises and the competing outcome's price falls, ensuring the two probabilities always sum to 100 percent. This mechanism rewards early insight and punishes poor forecasts, creating a dynamic price discovery process.
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, ensuring accuracy and fairness for all traders. Until that date, odds may shift as new information surfaces—player form, injury updates, or head-to-head records. Traders holding positions through resolution will receive payouts proportional to their stake in the winning outcome.
Several catalysts could shift odds before Jul 28, 2026. Injury announcements or withdrawal news involving either player would trigger sharp repricing. Recent match results, ranking changes, or updated head-to-head records may prompt traders to reassess probabilities. Court surface conditions, weather forecasts, and tournament draw details can also influence expectations. Media coverage highlighting player form or psychological factors may sway sentiment. As the match date approaches, late-breaking news or betting patterns from professional syndicates often drive final price adjustments.