Eddie Pepperell refused to let a double bogey on the 18th spoil his incredible round on moving day.
The Englishman holed an impressive eight birdies across the Old Course today before his costly double on the last.
But after opening rounds of 72 and 70, Pepperell says he’s delighted with a third round 66 all the same.
He said: “To finish with a double bogey is disappointing,” he said.
“But around the course I felt my swing was in.
“I didn’t hit the shot right off the 17th tee so I need to go and work on that this afternoon and make sure I can stand up on that tee tomorrow and feel confident again to hit the right shot.
“But, all in, if somebody had said would you take a 66 and be in this position after three days I would have taken it.”
The 24-year-old had a successful career as an amateur, including finishing runner up in the boys amateur championship in 2009.
But after turning pro two years later, he hasn’t quite been able to build on that early promise.
That was until his outstanding third round over the Old Course which puts him in real contention going into the final day.
“My putting was good and it’s going to be the guy with the hottest putter, depending a little bit on conditions, that will come closest to winning this competition,” he said.
“If I can keep putting well and keep the pace that I have on the greens then I feel like I can make enough birdies to give it a run tomorrow.”