Elena Rybakina defeated Tereza Valentova 6–3, 7–6 at the US Open on hard court in the first round, confirming her status as the pre-match favourite with odds of 1.27 to Valentova's 4.17. The Kazakhstani top seed controlled the opening set decisively, breaking through Valentova's resistance to claim it 6–3. The second set proved more competitive, with Valentova mounting a stronger challenge and forcing a tie-break, but Rybakina's superior court positioning and serving prowess ultimately prevailed at 7–6. The result keeps Rybakina on course in her pursuit of a maiden Grand Slam title, having now advanced to the second round without facing significant resistance.