Londoner Anthony Wall fired a birdie at the last to become the Open championship's leading Briton.
Wall was 11 over par at his other Open appearance in 2003
The 31-year-old, who qualified for the championship with a 40ft birdie putt on the final hole of the European Open, had four birdies in a final-round 69.
He finished on eight under, two shots ahead of Englishman Robert Rock.
Rock, playing in his second Open, carded a closing 71 while Greg Owen was a shot further back on five under after a 75 which included five bogeys.
Wall was delighted with his performance, especially as his career was put on hold after a serious illness.
"It is sweet to have done so well after having three or four years of glandular fever, which was very nasty," he said.
"The illness has not returned since 2002/03, although you always worry things like might come back.
"But it is all to do with adrenaline. I felt great out there. I played very solidly and my iron shots were good.
"To walk up the 18th in front of all those people and to get a birdie was even better."
Englishman Paul Casey finished his Open campaign with another disappointing round - carding a five over par 77 to end the tournament on 10 over.
I didn't have control of the golf ball this week... if you don't have that here you're not going to get away with it
He started with a double-bogey six and had another double bogey and four bogeys as well as three birdies to come last of the 71 men who made the cut.
"I really struggled with the swing," said the 29-year-old. "I didn't have control of the golf ball this week. If you don't have that here you're not going to get away with it."
Fellow Briton Paul Broadhurst had an eventful 69 to end his Open campaign on four under.
The 40-year-old opened with a birdie and a bogey before claiming an eagle three on the 5th. He then birdied the 7th before firing another eagle at the par-five 10th.
Double bogeys followed on the 11th and 14th holes, but he hit back with birdies on 16th, his fourth at that hole this week, and 18th.
Luke Donald, on the other hand, had a sedate final round as he carded a one-under 71 for a two-under 286 - his best four-round Open total.
The 28-year-old birdied the 5th and the 8th, dropped a shot at the par-five 10th before coming home with eight pars.
Graeme McDowell , who led after the first round, struggled to a seven-over-par 79 in the final round.
The Portrush 26-year-old carded seven bogeys and a double bogey to be nine over for his round after 15 holes before bagging birdies at the last two holes to finish on two over.