The 1990 U.S. Open was the 90th U.S. Open, held June 14–18 at Course No. 3 of Medinah Country Club in Medinah, Illinois, a suburb northwest of Chicago. Hale Irwin became the oldest U.S. Open champion by defeating Mike Donald at the 91st hole, the first in sudden-death, after the two tied in the 18-hole Monday playoff. It was Irwin's third U.S. Open title, with previous wins in 1974 and 1979. Implemented decades earlier, it was the first use of sudden-death in the U.S. Open; the last tie in a playoff was in 1946. Sudden death was needed again in 1994 and 2008. U.S. Open 1990: June 14–18, 1990 at Medinah Country Club, Course No. 3. Champion: Hale Irwin, at 280 (−8), playoff — 3rd major title. Wiki link