Lee Trevino

Lee B. Trevino, 28, from Horizon City, Texas, played four rounds under par, equaled the 72-hole record of 275, and won by four strokes over the East Course of the Oak Hill Country Club, Rochester, New York. Trevino scored 69-68-69-69 and became the first player in Open history to play all four regulation rounds under par and in the 60s. Trevino's 275 tied the record set by Jack Nicklaus the previous year. Nicklaus was second to Trevino at 279.

Bert Yancey of Tallahassee, Florida led the first round with 67, three under par. Yancey was then two strokes ahead of Trevino and Charles Coody of Abilene, Texas. Yancey followed with 68, giving him a 36-hole score of 135. This tied the record set by Mike Souchak at the 1960 Open at Cherry Hills, Denver. Yancey was then two strokes ahead of Trevino. Yancey held the lead after three rounds with 70 for 205, one better than the previous record 206 established by Tommy Jacobs at Congressional Country Club in 1964.

Despite his record score, Yancey was only one stroke ahead of Trevino as the final round began, for Trevino had matched the previous record of 206. Nicklaus was third with 212 and Bobby Nichols fourth with 213. Nicklaus began the final round by scoring birdies on two of the first four holes. Yancey and Trevino, meanwhile, each scored 5 on the par-4 first hole. Trevino caught Yancey when Yancey made a 4 on the par-3 third, then went ahead to stay when Yancey went over par on the ninth. He added a stroke to his lead on each of the next four holes.

John S. Spray of Cedar Rapids, Iowa equaled the record for the final round with 65 and tied Don Bies of Seattle, Washington for fifth place. Richard L. Siderowf of Westport, Connecticut was low amateur with 300. Entries reached a record total of 3,007 and the prize money of $188,800 also was a record.