East Yorkshire golfer David Lynn set the early pace after carding an opening 68 on his Masters debut at Augusta National.
Playing only the third major of his career after securing his place by finishing second at the US PGA Championship last year, Lynn, from Kirk Ella, carded six birdies and two bogeys to set the early clubhouse target.
And although he was subsequently overhauled, the world number 53 could have no complaints after a round which saw him finish ahead of more high-profile compatriots Lee Westwood and Justin Rose, who were both round in 70.
The 39-year-old, whose partner Sally Moore is a director of her family's Hull-based security business, has just one win in almost 400 European Tour events, birdied the first, eighth and ninth to be out in 33, and after a dropped shot on the 10th, hit back with birdies on the 11th, 12th and 15th.
A bogey on the 17th looked like being followed with another on the 18th when he was faced with a 12ft putt for par after hitting his approach over the green, but he holed out to complete a brilliant debut round.
– David Lynn
Everyone said playing here was about the percentages and talking to an old friend of mine, David Gilford, who came here for the first time and shot a 67 in the first round, he said 'Don't be too intimidated by the greens. There are birdies out there,' So I had that in my mind as well.
"I was on the ninth and my caddie said 'You're leading the Masters.' He just looked at me and smiled. I said 'I'd rather be leading it Sunday afternoon' but it's obviously not a bad thing to see your name up there and something you could always look back on.
"But there's a lot to be done for the rest of the week and hopefully I can keep my name up there.
"It's taken me a golfing lifetime to get here. You do feel like you know the place, because you see it that many times on TV. It's fantastic.
"When I am on my game I know I can compete at this level and Kiawah Island (for the US PGA) confirmed it to me. It gave me a bit of extra belief. I'm not going to sit here and say I'm going to be there Sunday night, but deep down I know that I've got performances in me that could put me there Sunday night."