The world's 91st-ranked amateur delivered an all-time upset, and all-time interview, at the Olympic Club on Thursday.

Oklahoma State junior Preston Stout, the medalist in stroke-play qualifying and the No. 4-ranked amateur, became the only player from the top 10 to advance at the U.S. Amateur.

Follow the Round of 16 at the 2025 U.S. Amateur on Thursday for live updates, highlights, leaderboard, scores and more.