The 1978 Open Championship was the 107th Open Championship, held 12–15 July over the Old Course at St Andrews, Fife, Scotland. Jack Nicklaus won his third and final Open championship, two strokes ahead of runners-up Ben Crenshaw, Raymond Floyd, Tom Kite, and Simon Owen. It was the fifteenth of his eighteen major championships and marked the completion of his third career grand slam. The Open 1978: July 12–15, 1978 at Old Course at St Andrews. Champion: Jack Nicklaus, at 281 (−7) — 15th major title. Wiki link