Pablo Larrazabal attributed his second BMW International Open title to a flying start as he carded a final-day 66 to see off the challenge of Henrik Stenson in Munich.
The Spaniard reached the turn in a five-under-par 31 and added a crucial sixth birdie on the 16th to finish 17-under, one shot ahead of the Swede.
Stenson fired himself right into the mix with an eagle 11 as well as five birdies in a round of 65, but ultimately had to settle for second place as Larrazabal's nerve held over the closing holes.
The Barcelona-born 32-year-old told Sky Sports: "I knew that I was in a good position, two groups ahead, and I knew that I had to start very fast. I had to start with a few birdies in the first holes and I started very well.
"I think I was five-under for the front nine and hitting the ball great, as well as I have hit it all year, and my putting was awesome. I made a lot of great putts.
"Coming in, it's tough coming in. You have a lot of holes with a lot of trouble, so I knew I needed to put myself in a good position to make birdies. I made birdie on 16, a great shot.
"I had memories from the past - I lost the tournament over there back in 2010, going 19 under par with three to play, and I lost it over there, so I had that in my mind: 'Put it on the green and try to make the putt'. If not, four is a great score in 16."
Stenson's birdie at 18 briefly left him in a tie for the lead, but a three for Larrazabal on the 16th proved decisive.
Asked if he was aware on the course how close the Swede had been to him, he replied: "I knew, I knew exactly.
"Henrik is not German but he has a lot of German friends, and we could hear the roar. That kind of roar is for [Martin] Kaymer or for one of the best in the world, and I knew that Henrik was coming fast.
"But he birdied the last and I birdied 16."
It was Larrazabal's second win in Munich and fourth on the European tour, and it came two months before he is to marry girlfriend Gala Alten.
He said: "In two months I will be a married man, so this is awesome. Being with her again around Munich and around this beautiful golf course - this is a place that has given us a lot of great memories and being married to her is a dream come true."
Stenson's late flourish took him one shot clear of England's Chris Paisley, whose 15-under-par four-round total of 273 earned him third place in his own right, although he might have claimed a share of second with a long putt on the 18th which came up just short.
South African Retief Goosen tied for fourth with Thailand's Kiradech Aphibarnrat and another Spaniard, Carlos del Moral, a further stroke back, with Ireland's Michael Hoey in joint-seventh with Swede Peter Hanson on 13-under.
Paisley's compatriot David Howell matched Stenson's 65 to claim a share of ninth place, but it proved a sobering day for another Englishman, overnight leader James Morrison.
The 30-year-old did not make a single birdie and carded no fewer than five bogeys as his chance of glory slipped away amid the charge ahead of him.