TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 24, 4:00 AM EST
Polymarket
This market tracks whether the Swiss Open tennis match between Raphael Collignon and Valentin Vacherot will go over or under 23.5 games total. On Polymarket, the over/under 23.5 outcome is currently priced at 100.0%, indicating near-certain market consensus on the direction. Resolution will be determined by the official ATP Tour scoring records at atptour.com. The match was originally scheduled for July 17, 2026, so watch for any updates to the match schedule or postponement announcements that could affect the final game count when the match ultimately concludes.
This market refers to the tennis match between Raphael Collignon and Valentin Vacherot in the Swiss Open, originally scheduled for July 17, 2026 at 4:00AM ET. This market will resolve to 'Raphael Collignon' if Raphael Collignon advances against Valentin Vacherot. This market will resolve to 'Valentin Vacherot' if Valentin Vacherot advances against Raphael Collignon. 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 often diverge from traditional sportsbook lines because they reflect real-time trader sentiment rather than fixed bookmaker pricing. On this market, odds may move more dynamically as new information surfaces, whereas sportsbooks adjust less frequently to manage liability. Prediction markets can sometimes offer sharper pricing because traders have direct financial incentive to identify mispricing. However, sportsbooks may incorporate additional factors like injury reports or weather updates faster. Comparing both sources helps identify where consensus is strongest and where outlier views exist.
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 implied probability of that player winning, calculated from the ratio of shares outstanding and trading activity. As more traders buy one outcome, its price rises and the competing outcome falls. This continuous repricing ensures the market stays efficient and responsive to new information throughout the trading period.
This market resolves around Jul 24, 2026, after the Swiss Open match concludes. The outcome is determined by verifying the final result against credible public sources covering professional tennis. Once the match is completed and the winner is confirmed through official tournament reporting, the market settles accordingly. Traders holding shares in the winning outcome receive their payout, while losing positions expire worthless. The resolution process typically occurs within hours of the final point being played.
Several factors could shift odds before the match begins. Injury announcements or withdrawal news about either player would trigger sharp repricing. Recent tournament results, head-to-head records, or updated rankings may prompt traders to reassess probabilities. Court surface conditions, weather forecasts, and draw positioning can influence expectations. Media coverage highlighting player form or psychological factors also moves the market. Late-breaking developments such as coaching changes or player statements in the days leading up to play could generate significant trading volume and price swings.