Currently ranked 162nd on the European Order of Merit, Dier shot an almost flawless round, recording 10 birdies and not a single bogey. The 25-year-old from Germany, who did not even take part in last week's British Open snuck up on both the field and the course on his record breaking day.
Check out Dier's record-tying scorecard
'I dont think I am on earth at the moment, I think I am still in orbit,' said Dier moments after stepping off the 18th green. Ive shot 65 about three or four times but Ive never been close to a score like this ' its a number everybody dreams about.
Dier leads a group of three players who find themselves five shots back despite carding rounds of 65s. David Gilford, Ronan Rafferty, and Chris Van Der Velde all are at 5-under-par on the par-70, 6,721 yard Hilversumsche golf course.
The top-ranked player in the field and world's No. 8, Padraig Harrington, is six strokes off the pace, in with a 4-under 66. Justin Rose, coming off another solid performance at the Open, finished with a 67, seven back of Dier.
But the day clearly belonged to Dier. Though he already holds a European Tour victory at last year's North West of Ireland Open, no one could have forseen a day like this. Playing in the afternoon, he birdied four of the first five holes and went out in 29, then followed it with a 31 on his inward nine, including a chance for eagle at the 18th and the European Tour record of 59. He left the 40-foot effort short, then drained the next for his magical 60.
I never really thought about a particular score or anything like that, I just made one birdie at a time. When I birdied the eighth to go to 4-under-par I thought I was in good shape, but I was never thinking about 60.
His playing partners, Gary Clark and John Bickerton, were unable to feed off Dier's incredible scoring and shot 73 and 67, respectively.
American John Daly, almost always with a strange or interesting story surrounding him, didn't disappoint in either his score or the story. He shot a back-nine 31 to end the day at even-par 70, but more intriguing was the condition of one of his hands. Citing that glass had been lodged in is hand some years back, Daly said during the pro-am it dislodged and opened up a new, bleeding wound. Ignoring doctor's advice on whether to play or not, Daly chose to put super-glue over the cut on play on.
Full-field scores for TNT Open