Jannik Sinner enters the 2026 US Open as the clear hard-court leader with an overwhelming recent record on the surface, positioning him as the trader consensus favorite to reach the men's final alongside defending champion Carlos Alcaraz. Aryna Sabalenka tops the women's entry list as back-to-back champion and aims for a historic three-peat, with Elena Rybakina and Jessica Pegula among the primary challengers. The hard-court swing leading into the late-August main draw, including recent Masters events where Sinner extended his dominance while Alcaraz withdrew from Cincinnati, shapes current implied probabilities. Player health, draw positioning, and late-summer form remain key variables that could shift semifinal and final matchups in this Grand Slam.