Alexander Zverev secured the 2026 US Open men's singles title by defeating Ben Shelton in the September 13 final, 6-3, 7-6(2), 5-7, 6-2. This outcome solidified trader consensus at 100% implied probability for the German, who entered as the top seed and extended a dominant season that already included the French Open crown. Zverev's consistent performance across the fortnight, including straight-set wins in later rounds and a favorable stylistic matchup against Shelton's power game, drove the resolution. Residual pricing on other names like Casper Ruud reflects minor market friction rather than any realistic alternative. Late scratches, weather delays, or officiating reviews represent the only theoretical paths that could have altered the result after the final, though none materialized.