Jannik Sinner is the clear favorite in the 2026 Men’s US Open winner market, holding a 53% implied probability on Polymarket as of Jul 15, 2026 9:22 am ET.
That number puts Sinner far ahead of the rest of the field and gives the market a lopsided look more than a month before the tournament is scheduled to begin at Flushing Meadows. The 2026 men’s US Open is set to run from Aug. 23 through Sept. 13, 2026, so this is still an early snapshot rather than a final verdict.
Why Sinner stands out
The market’s biggest takeaway is not simply that Sinner leads, but that he leads by a wide margin. Carlos Alcaraz is next at 13.5%, while Alexander Zverev is listed at 7.7%. Novak Djokovic sits at 5.8%, and the rest of the contenders are clustered well behind them.
That gap suggests bettors view Sinner as the safest answer for a title that usually demands a player who can survive a long two-week test on hard courts. The market is effectively making a statement about whether one elite hard-court profile can hold up through injuries, rankings shifts, draw difficulty and late-summer form swings.
The chasing group
Alcaraz remains the most obvious challenger, but the market still prices him well below Sinner. Zverev, Djokovic and Taylor Fritz all appear to have different paths to the title, with health, serve effectiveness and draw quality all likely to shape their chances.
That is part of what makes this market interesting. The US Open is still weeks away, and the title picture can change quickly once the draw is set and players begin their summer hard-court run. For now, though, Sinner is the name the market trusts most.
Polymarket’s last sync at Jul 15, 2026 9:22 am ET gives this forecast a clear timestamp. It is a strong early signal, but not a finished one, with plenty of time for the 2026 US Open race to tighten before the first ball is struck.
