Jason Dufner has equalled the lowest round in major championship history after coming up woefully short with a putt to claim the outright record in the US PGA Championship at Oak Hill.
Dufner needed to hole from 12ft on the 18th to card an eight-under-par 62, only to leave his birdie putt well short of the hole and have to settle for "only" a course-record 63.
It was the 26th such score recorded in a major and came just hours after Webb Simpson had equalled the previous course record of 64 set by Ben Hogan in 1942 and equalled by Curtis Strange in 1989.
"It's tough," Dufner said. "I showed a little bit of nerves there leaving it short. It's one you would like to gun and have a chance at history (but) I am in pretty good company.
"The history of the game is something that is dear to my heart. To be part of history is a neat accomplishment, I never thought a guy from north east Ohio would be able to do these things."
Former US Open champion Simpson was seven under par after 15 holes and needed to play the last three in one under to shoot 62, but could only manage a bogey and two pars.
Dufner carded an eagle and three birdies to be out in 31 and picked up further shots at the 11th, 13th and 16th before agonisingly missing from 20ft for birdie on the 17th.
At nine under par the world number 21 held a two-shot lead over fellow American Matt Kuchar, who carded a 66 after dropping his first shot in two days on the 18th, and Masters champion Adam Scott.
Scott added a 68 to his opening 65 to finish one ahead of playing partner and US Open champion Justin Rose, who shot a stunning 66 thanks to a brilliant homeward nine of 29.