TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 31, 4:12 PM EST
Kalshi
This market focuses on predicting which player will win the first set of a tennis match between Brandon Nakashima and Sebastian Baez at the 2026 US Open. The outcome depends solely on the result of the opening set, regardless of how the rest of the match unfolds. It reflects the competitive dynamics and performance of both players in that specific segment of play.
The market resolves based on which player wins the first set of the Brandon Nakashima vs. Sebastian Baez match in the 2026 US Open Men Singles Round of 128. If the match does not commence due to injury, walkover, forfeiture, or cancellation before any ball is played, 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 can resolve based on completed play; otherwise, unresolved markets 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.
Key signals include practice sessions, recent match statistics, or any last-minute injury updates for either player. Media commentary and betting trends may also sway trader sentiment. As Aug 30, 2026 approaches, any shift in form or tactical adjustments could trigger rapid price changes, so monitoring news and performance indicators is crucial for spotting movement in this market.