Brooks Koepka held off a late charge from Dustin Johnson to capture his second consecutive PGA Championship on Sunday, completing a wire-to-wire victory for his fourth major title in nerve-wracking fashion.
A record seven-stroke lead for Koepka was reduced to a single shot, but he withstood making four bogeys in a row on the back nine and another at 17 for an unexpectedly narrow triumph.
Koepka fired a final-round four-over par 74 at windy Bethpage Black to finish 72 holes on eight-under 272 and defeat Johnson by two strokes, replacing him as world number one as a result.
Bogeys by Johnson at 16 and 17 made the difference before Koepka escaped sand and weeds off the 18th tee by finding the fairway and green then sinking a six-foot putt for the victory.
Koepka, who seeks his third US Open win in a row next month at Pebble Beach, became the first man to own back-to-back titles at two majors simultaneously by capturing the Wanamaker Trophy and the $1.98 million (1.77 million euro) top prize.
The 29-year-old American became the PGA's fifth wire-to-wire winner after Hal Sutton in 1983, Ray Floyd in 1982, Jack Nicklaus in 1971 and Bobby Nichols in 1964.