Curtis Thompson of Coral Springs, Fla., birdied his final hole Tuesday to win medalist honors by one stroke at the U.S. Junior Amateur Championship.
The 17-year-old Thompson, whose younger sister Alexis won the 2008 U.S. Girls Junior Championship, shot a 6-under 66 at Egypt Valley Country Club to finish the two rounds of qualifying at 10 under.
Thompson, who has committed to LSU, edged defending champion Jordan Spieth of Dallas and Gavin Hall of Pittsford, N.Y., by one stroke.
Hall, 15, did not break par in Monday’s opening round but Tuesday he fired a tournament record 10-under 62. The previous record was set by Joe Monte, who shot 64 in 2004 at Longmeadow (Mass.) Country Club.
With the field of 156 cut to 64, match play begins Wednesday with Thompson as the top seed.