TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 31, 7:07 PM EST
Kalshi
This market tracks the outcome of the second set in a professional tennis match between Roman Andres Burruchaga and Karen Khachanov during the 2026 US Open Men Singles Round Of 128. It focuses on determining which player will claim victory in that specific set. The result reflects the competitive performance of both athletes within that particular segment of the match.
The market resolves based on which player wins the second set of the specified tennis match. If the match does not commence due to injury, walkover, forfeiture, or cancellation before any play begins, the market settles at a fair price. Postponements or delays allow the market to remain open until the rescheduled match concludes, with a two-week window for closure. If a player retires during the match, markets that can be definitively settled using completed play will do so, while unresolved markets will settle at a fair market price determined by the Exchange. Kalshi disclaims any official affiliation with the governing league, and all trademarks remain property of their respective owners.
On Kalshi, the Set 2 winner market reflects trader sentiment through community-driven pricing, while sportsbooks use their own models and risk assessments. Prediction market odds often show tighter spreads and can shift rapidly with new information, such as player injuries or weather updates. Sportsbook odds may incorporate broader market trends and historical data, potentially offering different implied probabilities. Both types of odds provide insight into expectations, but they derive from distinct methodologies and participant bases.
On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Kalshi, this market is priced through continuous trading where participants submit bids and asks based on their outlook for the match. The current top outcome reflects the aggregate wisdom of traders, with the chance percentage indicating the implied probability of that result. Volume of $138,807 and 24-hour volume of $138,807 show liquidity and recent interest. Price discovery happens organically, adjusting to new data such as player form or match updates.
This market resolves around Aug 30, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The winner of set two will be determined by the official match result, and that data will be used to finalize the market's settlement.
Several signals could shift this market before Aug 30, 2026. Key match developments like player injuries, changes in coaching strategy, or weather conditions affecting play may influence trader sentiment. Performance metrics from earlier sets, such as serve efficiency or break points converted, can also impact expectations. News reports about player health or motivation, as well as broader tournament dynamics, might cause rapid price adjustments as traders reassess probabilities.