TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 21, 4:00 AM EST
Polymarket
This market refers to the doubles tennis match between Nam/Niklas-Salminen and Duda/Vrbensky in the Croatia Open, originally scheduled for July 14, 2026 at 4:00AM ET. This market will resolve to 'Nam/Niklas-Salminen' if the team of Nam/Niklas-Salminen advances against Duda/Vrbensky. This market will resolve to 'Duda/Vrbensky' if the team of Duda/Vrbensky advances against Nam/Niklas-Salminen. 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 doubles tennis match between Nam/Niklas-Salminen and Duda/Vrbensky in the Croatia Open, originally scheduled for July 14, 2026 at 4:00AM ET. This market will resolve to 'Nam/Niklas-Salminen' if the team of Nam/Niklas-Salminen advances against Duda/Vrbensky. This market will resolve to 'Duda/Vrbensky' if the team of Duda/Vrbensky advances against Nam/Niklas-Salminen. 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 odds because they reflect real-time trader positioning rather than fixed lines set by oddsmakers. This market aggregates the collective forecast of thousands of independent participants, which can lead to faster price discovery and different implied probabilities than conventional betting venues. Comparing the two reveals whether the crowd's assessment aligns with professional bookmakers' views on the outcome.
On Polymarket, this market is priced through an automated market maker that converts trader buy and sell orders into continuous probability quotes. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Participants trade shares representing each possible outcome, and the current price of each share reflects the crowd's real-time belief about which pair will win. As new trades flow in, the price adjusts instantly, ensuring the market remains responsive to breaking news and shifting expectations.
This market resolves around Jul 21, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The winning outcome will be determined by which doubles team emerges victorious in the match. Traders should monitor official tournament announcements and sports news sources to stay informed of any schedule changes or developments that could affect the final result.
Key catalysts include player injury announcements, recent form and head-to-head records, court conditions at the venue, and any lineup changes announced before the match begins. Betting activity from sharp traders or large position shifts can also trigger rapid repricing. Additionally, related matches or tournament developments involving these players may influence market sentiment as traders update their forecasts based on momentum and competitive context.