Will Novak Djokovic win the 2026 Men's US Open?

Crossbook compares what two exchanges, Polymarket and Kalshi, charge for the same event, and publishes a permanent scored record of its own forecasts under published rules.

Settlement equivalence unverified. No eligible price gap is available.

Settled, no longer listedContract settles 13 Sept 2026Last checked 31 Aug 2026, 03:50 UTC

Bid/ask midpoint · retrieved 2026-08-31T03:50:27.008Z. Venue quote-update time is unavailable. Readings can be asynchronous.

0.8%bid 0.5% / ask 1.1%24h volume $469K · liquidity $45Kas of 31 Aug, 03:50 UTC · not refreshed recentlyView on Polymarket

Bid/ask midpoint · retrieved 2026-08-31T03:55:26.545Z. Venue quote-update time is unavailable. Readings can be asynchronous.

no two-sided marketnobody is quoting both sides, so there is no price to show24h volume $471K · liquidity –as of 31 Aug, 03:55 UTC · not refreshed recentlyView this market's series on Kalshi

How each venue defines this

Each exchange's own settlement text, quoted as written. Where they differ, the difference is usually why the prices do.

Settles Sep 13, 26

The 2026 U.S. Open tennis tournament is scheduled for August 23 - September 13, 2026. This market will resolve to the player that wins the 2026 U.S. Open Men’s Singles Tournament. If at any point it becomes impossible for a listed player to win the 2026 U.S. Open Men’s Singles Tournament per the rules of the tournament, the corresponding market will resolve to “No”. If the 2026 U.S. Open Men’s Singles Tournament is cancelled, postponed after October 31, 2026, or there is otherwise no winner declared within that timeframe, this market will resolve to “Other”. The primary resolution source w…

Settles Sep 14, 26

If Novak Djokovic wins the 2026 US Open Men's Singles professional tennis tournament, then the market resolves to Yes.

Settlement equivalence unverified

A person confirmed these two markets ask the same question. Their settlement documents have not been compared, so treat the price difference as unverified rather than as a like for like gap.

Confirmed as the same question: Will Novak Djokovic win the 2026 Men's US Open?

Price, last 60 days

Crossbook forecast

No public Crossbook forecast on this market yet. Every call that is made is timestamped and scored on the public record, win or lose.

Settlement equivalence unverified. The venue readings below are not ranked as a comparable price gap.

Volume over the last 24 hours is heavy, at about $471,020 on the busier venue. At least one side of this market has no real two sided book, which means the quoted price is closer to a placeholder than to a traded level.

This market has settled. The page is kept as a record of what both venues said while the question was open, and of what Crossbook called.

Related markets

Crossbook publishes every forecast it makes, timestamped before the answer is known and scored against the market afterwards. See the public record and the rules it is held to.