Jannik Sinner defeated Denis Shapovalov 5–7, 6–4, 6–3, 6–3 in the second round of the US Open on hard court, confirming his status as the overwhelming pre-match favourite with odds of 1.02. Shapovalov, a significant underdog at 15.75, pushed the Italian in an opening set that went to a tiebreak, but Sinner's superior consistency and court control proved decisive once he levelled the match. The world number one then dominated the final two sets, breaking Shapovalov's serve repeatedly to secure a commanding victory. Sinner's progression maintains his bid for a second Grand Slam title this season and underlines his formidable form on hard courts.