Hirsch was an alternate for the 22nd Senior Open, held at the Salem Country Club in Peabody, Mass.
Hirsch shot 74 and won a two-way playoff in sectional qualifying in North Riverside, Ill. He is the 26th amateur in the 156-man field.
Hirsch, an insurance and real estate executive, is competing in his seventh U.S. Senior Open. He is a two-time British Senior Amateur winner (1996, 2000) and was low amateur at the 1998 Senior Open at Riviera Country Club in Los Angeles.