Lee Trevino equaled the tournament scoring record and won the first of his six major titles, four strokes ahead of runner-up Jack Nicklaus.

Opens at the East Course; Cary Middlecoff won the first in 1956 and Curtis Strange successfully defended in 1989.

Bert Yancey held the 54-hole lead after a tournament record 205 (−5) in the first three rounds.

Nicklaus started the round seven strokes back at 212 (+2); he got two quick birdies, but did not record another until the 14th, by which time Trevino already had a commanding lead.

Trevino's total of 275 tied the tournament record that Nicklaus established the year before at Baltusrol; his four rounds in the 60s was a tournament first,[4] and did not happen again for a quarter century, until Lee Janzen won at Baltusrol in 1993.