In the first round, only 10 players shot below par, and just 19 players total were able to avoid shooting above par. Of the field, J.J. Spaun had the best day, shooting the only bogey-free round of the tournament so far.

Oakmont Country Club has delivered to expectation as host of the 2025 U.S. Open as only 10 golfers out of the 156-man field finished the first 18 holes under par. Atop the leaderboard entering Round 2 is J.