Will Sinner win the 2027 US Open men's singles title?
Delphi’s forecast
- Yesyour pick15.5%$0.16
- No84.5%$0.85
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Forecast reasoning
Sinner is the defending US Open champion and world No. 1, but ended his 2026 season early with a knee injury in October with no confirmed return date before the 322-day trading window closes. Recent prediction markets had him at 32%, but the injury and uncertainty about his recovery timeline have driven this estimate down to 16%.
Settlement
Resolution criteria: - "Yes": Wins if Jannik Sinner is declared the official men's singles champion of the 2027 US Open, with his victory confirmed strictly after 2026-10-24T21:26:48.159Z and at or before 2027-09-12T12:00:00.000Z. - "No": Wins if the 2027 US Open men's singles title is awarded to any player other than Jannik Sinner, or if Sinner does not participate or does not reach the final and is therefore not the champion, with the result confirmed strictly after 2026-10-24T21:26:48.159Z and at or before 2027-09-12T12:00:00.000Z.
Sep 12, 2027, 4:00 AM UTC