The 1980 U.S. Open was the 80th U.S. Open, held June 12–15 at Baltusrol Golf Club in Springfield, New Jersey, west of New York City. Jack Nicklaus set a new tournament scoring record to win his fourth U.S. Open title, two strokes ahead of runner-up Isao Aoki; in fact, as the tournament transpired these two golfers ended up playing all four rounds together. U.S. Open 1980: June 12–15, 1980 at Baltusrol Golf Club, Lower Course. Champion: Jack Nicklaus, at 272 (−8) — 16th major title. Wiki link