1980 PGA Championship
August 10, 1980 – Oak Hill Country Club, Rochester, N.Y.
Nicklaus’ second major title in 1980 came at the PGA Championship in the form of an overpowering performance and 7-stroke victory. Nicklaus shot 70 or under for the entire tournament. This was his fifth and final PGA Championship victory. It was also the fifth time in his career Nicklaus had won at least two majors in the same calendar year.