The native of England qualified for his first U.S. Open by shooting 10-under-par 132 at Hillcrest Country Club. Brown was one of four players from the 2022-23 Stanford University men's golf team to qualify on June 5, joining Michael Thorbjornsen, Karl Vilips and Alexander Yang. Brown made the cut in the 150th Open Championship last summer on the Old Course at St. Andrews. Earlier in the spring, he finished second in the Pacific-12 Conference Championship. He was a member of the 2021 Great Britain and Ireland Walker Cup Team.