Top moments from the first round of the 2025 U.S. Open

The 125th U.S. Open teed off Thursday morning at Oakmont Country Club just outside of Pittsburgh. It's the 10th time Oakmont has hosted the U.S. Open and it figures to be one of the toughest tests in recent years.

After the first round, J.J. Spaun led the pack, carding a 4-under 66 -- one of 10 players to finish below par on the event's first day. We have all of the best action from the first round of the 2025 tournament.