America's JJ Spaun overcame a flooded golf course, a 90-minute rain delay and the brilliance of Scotland's Robert MacIntyre to win the US Open on a chaotic final day at Oakmont Country Club.
The 34-year-old, who needed a par on the last to win his first major, holed an incredible 65-foot birdie putt to win by two on one under.
MacIntyre, watching on a television, applauded and mouthed "wow" when the putt dropped. It was a terrific gesture.
The 28-year-old from Oban had gone close to breaking his major duck at a course that is generally regarded as the toughest in the world.
He started the day seven off the lead and was the only player from the overnight top-10 to break par in the final round. His sensational two-under 68 to set the clubhouse target at one over par.
But Spaun birdied the 17th to move one clear and then produced his moment of magic on the final green to send the drenched masses surround the putting surface wild.
The Californian, who started the round one shot behind leader Sam Burns, bogeyed five of his first six holes to seemingly drop out of contention.
However, after torrential rain stopped play for an hour and a half, Spaun regained his composure to follow a front nine of 40 shots with a back nine of 32.
"I never thought I would be here holding this trophy," he said.
"I've always had aspirations and dreams but a few months ago I didn't know what my ceiling was and how good I could be."
While Spaun was climbing the leaderboard, the ragged play of others added to the drama.
Overnight leader Burns and playing partner Adam Scott drowned in the rain, enduring nightmare rounds of eight and nine over par respectively to finish well off the pace.
At one stage, five players had shared the lead at one over par, including England's Tyrrell Hatton who played outstandingly through 16 holes but imploded at the 17th and finished four back.
Four bogeys on the front nine derailed Norway's Viktor Hovland but he stayed in touch and finished in third.