Jim Furyk's record-breaking 58 made history at the PGA Tour Travelers Championship on Sunday, but the title went to Russell Knox at TPC River Highlands.
The Scot finished 14-under-par to take victory by a single shot from Jerry Kelly, with Patrick Rodgers and Justin Thomas sharing third place.
Knox has boosted his chances of being picked for the upcoming Ryder Cup at Hazeltine as a result of his second tournament victory in the last five weeks.
A birdie at the third got Knox up and running, although he dropped the shot immediately on the next hole, before back-to-back birdies at 13 and 14 sent him to the top of the leaderboard.
Knox almost found water off the 16th tee but, even with the chasing pack struggling to exert any pressure, he made bogey to cut his advantage to a single shot.
On the 18th World Golf Championships-HSBC Champions winner Knox sent his drive right of the fairway and then found the sand, but he scrambled brilliantly to close out a par.
Kelly, one of the overnight leaders on Thursday, held the clubhouse lead for much of the closing stages, the American's six-under-par round of 64 leaving him sitting pretty.
Daniel Berger led the tournament going into the last day but his four-over 74 saw him drop out of contention, with four straight bogeys on the start of his back nine ruining his title chances.
Earlier in the day, Furyk set a new PGA record with his blemish-free round of 58, the lowest score in the history of the tour.
We bow down to you Jim #58 #history ????-- Luke Donald (@LukeDonald) August 7, 2016
The 46-year-old was already one of the few players to have hit a 59 on the PGA Tour and he went one shot better with an incredible 12-under-par round on Sunday.
"No-one else can say they've done that out here on the PGA Tour," said Furyk, who finished joint-fifth in the tournament.
"It's really special, and it's probably going to take a little while for it to sink in and really put it into perspective."
"There's a lot of rounds by a lot of great players ahead of me that have never reached 58. To have a little, small place in history is something you dream of."