England’s Daniel Gavins hit a 26-foot putt for a double bogey after twice finding water on the 18th to win the Ras Al Khaimah championship.
He finished on 19 under to beat Alexander Bjork and Zander Lombard by one shot and win his second DP World Tour title.
Swede Bjork’s three putts from 18 gave Gavins the three-shot cushion he eventually needed while South African Lombard missed an eagle putt to equalise.
“I’m pretty speechless to be honest,” said the 31-year-old world number 296.
The Leeds-born player suffered from a back injury and was unable to train ahead of the tournament at Al Hamra.
“I’ve struggled off the tee for the past two weeks and it’s not a great tee shot to have (at 18), even with a lead,” he added.
“It was a tough hole to get through and to be fair I thought I was making this putt for a play-off. I didn’t realize Bjork bogeyed.
“I had put two in the water and thought ‘this is a way to end the tournament’. I sank the putt and went to the back of the green and saw I was winning again. It was kind of a big shock.”
Gavins started the final round two strokes behind day leader Lombard but, after bogeying the opening hole, responded by birdying eight in a three-under closing 69.
Bjork, who was playing in the group ahead of Gavins, missed a birdie putt that would have piled the pressure on the Englishman, but also failed to drill his return putt for par and fired a 68.
Gavins rolled into the water from the tee and found the lake with his approach, but his long putt for double bogey allowed him to take a one-shot advantage in the clubhouse.
He then faced an anxious wait until the end of the final pairing, but Lombard, trailing by two shots, could only birdie the last for a final round 72 and failed d a stroke to force additional holes.
In-form Polish player Adrian Meronk shot a 65 to finish tied for fourth on 15 under with Denmark’s Thorbjorn Olesen, who finished with a 67.
England’s Ross Fisher was tied for ninth after a stunning 65, while Scotland’s David Law closed with a 71 to finish 11th.