The 1938 U.S. Open was the 42nd U.S. Open, held June 9–11 at Cherry Hills Country Club in Englewood, Colorado, a suburb south of Denver. Defending champion Ralph Guldahl won his second straight U.S. Open title, six strokes ahead of runner-up Dick Metz. It was the second of Guldahl's three major titles. In the second round, set a dubious record by shooting a 19 on the par-4 16th hole. Ainsley's ball landed in a creek, and instead of taking a drop he continued to play the ball out. He shot 96 (+25) for the round and missed the cut.