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 20, 4:00 AM EST
Polymarket
This market refers to the tennis match between Juan Manuel Cerundolo and Zdenek Kolar in the Swiss Open, originally scheduled for July 13, 2026 at 4:00AM ET. This market will resolve to 'Juan Manuel Cerundolo' if Juan Manuel Cerundolo advances against Zdenek Kolar. This market will resolve to 'Zdenek Kolar' if Zdenek Kolar advances against Juan Manuel Cerundolo. 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Juan Manuel Cerundolo and Zdenek Kolar in the Swiss Open, originally scheduled for July 13, 2026 at 4:00AM ET. This market will resolve to 'Juan Manuel Cerundolo' if Juan Manuel Cerundolo advances against Zdenek Kolar. This market will resolve to 'Zdenek Kolar' if Zdenek Kolar advances against Juan Manuel Cerundolo. 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 ATP Tour. A consensus of credible reporting may also be used.
Prediction market odds and traditional sportsbook odds often diverge because they reflect different mechanisms. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets are driven by trader consensus—real money backing beliefs about the outcome. This market aggregates the views of many independent participants rather than a single bookmaker's model. Over time, prediction markets have shown strong accuracy on sports outcomes because traders face direct financial incentive to price events correctly. Comparing this market's implied probability to major sportsbooks can reveal where the crowd sees value.
On Polymarket, this market is priced through an automated market maker that converts trader activity into real-time probabilities. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders purchase shares representing each possible outcome, and the price of those shares reflects the collective belief in that result. As more capital flows toward one outcome, its price rises and the competing outcome's price falls. This continuous pricing mechanism ensures the market stays liquid and responsive to new information about the match.
This market resolves around Jul 20, 2026, once the Swiss Open match between the two players concludes and the result is verifiable from credible public sources. The outcome is determined by the official match result—which player wins the contest. Until that point, traders can continue to buy and sell shares as new information emerges, odds shift, and confidence in each outcome changes. Resolution happens automatically once the event is confirmed.
Several factors could shift trader sentiment before the match takes place. Recent form and head-to-head records matter significantly; a strong recent performance by either player could trigger buying pressure on their outcome. Injury reports or fitness concerns announced closer to the event would likely move the market sharply. Court conditions, weather, and draw positioning can also influence expectations. Media coverage and expert analysis may sway trader confidence. As the match date approaches and more information becomes public, expect volatility in this market as participants adjust their positions based on the latest developments.