Italy's Renato Paratore claimed his first European Tour title at the Nordea Masters after overnight leader Chris Wood bogeyed the final hole in Malmo.
Paratore carded a closing 70 at Barseback Golf and Country Club to finish 11 under par, the 20-year-old crucially saving par on the 18th after being fortunate to have a shot to the green following a wayward drive.
Playing in the group behind, England's Wood also pulled his tee shot on the last into the trees and was forced to take a penalty drop from an unplayable lie, the resulting bogey dropping him into a tie for second with compatriot Matt Fitzpatrick, the defending champion.
Fitzpatrick was left to rue a double bogey on the third after carding seven birdies in a final round of 68, with Denmark's Thorbjorn Olesen and South Africa's George Coetzee sharing fourth place on nine under.
Coetzee had surged through the field with a closing 66 which featured two bogeys in the first three holes and nine birdies, while Barseback member and Open champion Henrik Stenson finished in a tie for 26th after a 69.
Paratore is the youngest winner on the European Tour since GolfSixes team-mate Matteo Manassero, who walked the final few holes with his fellow Italian after finishing his own round.
"I couldn't be happier now. This win means a lot to me," Paratore said. "I was one behind the leader so I knew if played well I could win and in these tough conditions I kept a good attitude until the end.
"The key points were on eight and nine where I made birdie to come back after a bit of a difficult start. I played more or less solid and the last three holes I managed three very good pars.
"It's big for my confidence because I was looking for this win the last year and now I've achieved that so it's very nice for me."
Wood held a one-shot lead over Paratore and France's Benjamin Hebert entering the final round and got off to a bad start with bogeys on the first and third, but bounced back with three birdies in four holes around the turn.
Another birdie on the par-five 16th took him level with Paratore, who had picked up shots on the 12th and 14th, only for the final tee shot to prove decisive.
"It probably summarised how I felt with my game this week, a little bit scrappy with some really good stuff in there as well," Wood said of his closing 72. "All week I feel like I've been fighting my swing and probably surprised myself as to a lot of the good shots I hit this week.
"Your flaws come out when you're under pressure and left's been my bad shot for a while now. It's obviously disappointing but I'm sure after a couple of days I'll think it's some points on the board, should nudge me back in for the US Open and that's what I came here to do really.
"Overall we've had a great week, but it's hard when you can't close it out."