TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 18, 3:30 AM EST
Polymarket
This market refers to the tennis match between Martyna Kubka and Valentina Ryser in the ITF Women Don Benito, originally scheduled for July 11, 2026 at 3:30AM ET. This market will resolve to 'Martyna Kubka' if Martyna Kubka advances against Valentina Ryser. This market will resolve to 'Valentina Ryser' if Valentina Ryser advances against Martyna Kubka. 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 Martyna Kubka and Valentina Ryser in the ITF Women Don Benito, originally scheduled for July 11, 2026 at 3:30AM ET. This market will resolve to 'Martyna Kubka' if Martyna Kubka advances against Valentina Ryser. This market will resolve to 'Valentina Ryser' if Valentina Ryser advances against Martyna Kubka. 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 serve different purposes and audiences. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets reflect pure trader consensus without a built-in house edge. This market aggregates the views of many independent traders making their own assessments, which can lead to sharper or more efficient pricing than traditional betting venues. Comparing the two can reveal where public opinion and professional oddsmakers disagree on the likely outcome.
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 probability assigned by active traders. As more capital flows into one outcome, its price rises and the competing outcome's price falls, creating a self-correcting mechanism that keeps pricing aligned with incoming information and trader conviction.
This market resolves around Jul 18, 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, determining which player prevailed. Until that point, traders can continue to buy and sell shares as new information emerges, injuries are announced, or player form becomes clearer. Resolution happens automatically once the event is finalized and confirmed through established sports data sources.
Several factors could shift trader positioning before the match concludes. Recent tournament performance, head-to-head records, and player rankings often influence expectations. Injury announcements or withdrawal news would trigger sharp repricing. Court surface conditions, weather forecasts, and seeding updates can also sway the odds. Media coverage highlighting a player's recent form or confidence level may prompt traders to adjust their positions. Even minor news about player availability or last-minute lineup changes can cause meaningful swings in this market's price.