Watch US Open — Day 4 Second Round Free.

What's at Stake

Day 4 of the US Open marks the conclusion of the second round, where competitors face the intense physical and mental pressure of securing a spot in the round of 32. For top seeds, surviving these early-round matchups is crucial for preserving energy and sustaining their campaigns for the final Grand Slam title of the season. Meanwhile, lower-ranked challengers view this stage as a prime opportunity to secure valuable ranking points, significant prize money, and a career-defining upset on the grand stages of Flushing Meadows.

Form Guide

Heading into the second round, the field presents a mix of dominant hard-court specialists and battle-tested qualifiers who have already adjusted to the quick, bouncing conditions in New York. The top contenders have carried strong momentum from the North American summer swing, showing minimal vulnerability in their opening matches. However, several seeded players have struggled with consistency, leaving the door open for in-form underdogs who have built confidence through grueling three-out-of-five-set battles.

Key Players to Watch

• Carlos Alcaraz — The dynamic Spaniard looks to showcase his explosive court coverage and variety to dismantle defensive opponents early in the tournament.
• Coco Gauff — Armed with elite athleticism and passionate home-crowd support, the American star aims to dictate play with her powerful serve and backhand.
• Jannik Sinner — The Italian's relentless baseline power and improved tactical patience make him a formidable obstacle for anyone trying to disrupt his rhythm.

Prediction

Expect the established top seeds to assert their dominance and secure relatively straightforward victories, though a few grueling four-set battles are likely on the outer courts. The fast daytime conditions will favor aggressive baseliners who can dictate the tempo and minimize unforced errors under pressure. Ultimately, the tournament favorites will showcase their superior physical conditioning to safely navigate their way into the third round.