Adrian Otaegui secured a six-shot victory at the 2022 Estrella Damm N.A. Andalucía Masters to claim his fourth DP World Tour title.
The Spaniard went into the final round with a six-stroke cushion and never gave the chasing pack an opportunity to catch him, firing four birdies and a single bogey in a closing 68 at Real Club Valderrama to finish on 19 under par, setting a new tournament record.
Joakim Lagergren finished alone in second after posting a final-round 68 to climb up the DP World Tour Rankings in Partnership with Rolex.
The Swede began the week 127th in the standings but moves into the top 50 following an impressive performance in Sotogrande.
Australia's Min Woo Lee was three shots further back in solo third, two ahead of local boy Angel Hidalgo, whose fourth-placed finish moved him to 88th on the DP World Tour Rankings in Partnership with Rolex.
Otaegui opened his round with three straight pars before picking up a first birdie of the day from 16 feet on the fourth.
He made it back-to-back birdies with a lengthy putt from the semi-rough on the fifth before producing a good par save at the eighth to remain seven shots clear at the summit.
After converting his 18-foot birdie putt at the ninth to turn in 32, Otaegui missed a birdie chance from six feet on the tenth before surrendering a bogey at the next hole.
The 29-year-old gave himself outside birdie opportunities over the next three holes but had to settle for pars.
He made a good up-and-down for par at the 15th after missing the green before pulling off a par save from 15 feet on the 16th.
Another birdie chance came and went at the 17th before a closing birdie saw him sign for a 68.
Otaegui was delighted to earn his first win at Valderrama, a course he holds in high regard.
He said: "I'm very, very proud. I feel so happy to have my first win in Spain, in front of these crowds, on my favourite golf course in Spain.
"It's just unbelievable. I'm very, very happy with everything, the week went perfect.
"I'm very happy with the way I managed today because it was my first time with such a big shot difference.
"The plan was just to start strong, forget the shot difference I had and try to beat the others today.
"I played very well until the end. I tried to follow the plan and think I did well."