Si-woo Kim almost etched his name in the PGA Tour history books as he blitzed the field to power into a two-stroke lead after the second round of the Wyndham Championship.
Kim was agonisingly close to becoming just the seventh player in Tour history to card a 59, posting a 10-under-par 60 to move top of the leaderboard in Greensboro, North Carolina on Thursday.
The 21-year-old South Korean - who lost out to Aaron Baddeley in a play-off at the Barbasol Championship in July - dazzled in a flawless round at Sedgefield Country Club, holing eight birdies and an eagle.
60.-- PGA TOUR (@PGATOUR) August 19, 2016
What a day for Si Woo Kim! pic.twitter.com/qs1Fyq0qa1
Kim birdied six of his closing nine holes as he quickly went from 40th to top of the pile, two shots clear of overnight leader Kevin Na, Hideki Matsuyama, Jim Furyk and Lucas Glover.
Na, who shared the first-round lead alongside Rafa Cabrera Bello on Thursday, dropped down a position at 10 under for the tournament following his 67.
Matsuyama's 64 saw him move into contention, along with 17-time Tour winner Furyk, who also went six under for the day.
It's been a summer of sub-60 scores.-- PGA TOUR (@PGATOUR) August 19, 2016
We nearly had two more today in North Carolina. https://t.co/F32EpM0MTa
Kim was not the only one to flirt with 59, after Glover (61) just fell short.
Glover - the 2009 U.S. Open champion - had a chance to match Furyk's PGA Tour record 58 he shot at the Travelers Championship earlier this month, but he missed a short birdie putt on 17, then three-putted the difficult par-four 18th.
A stroke further back at nine under overall is Cabrera Bello following his second-round 68.
Brett Stegmaier (67), 2007 champion Brandt Snedeker (68), Andrew Landry (67) and former world number one Luke Donald (68) are tied for seventh at seven under, while the likes of Rickie Fowler (67), Graham McDowell (66), Russell Henley (67) and Billy Horschel (68) are a shot behind.
Elsewhere, Ernie Els (71) headlined the players to have missed the cut at one over.