Alex Noren kept his composure at Celtic Manor to clinch the Wales Open crown.
The steady Swede sealed his second European Tour title by two shots from Frenchman Gregory Bourdy and Dane Anders Hansen.
Noren dropped just one shot in a consistent one-under-par final round to finish on nine under for the tournament.
The 28-year-old will now head to Sunningdale for Monday's qualifying for the 2011 Open at Royal St George's.
Noren had led the £1.8m tournament since the halfway stage and the world number 127 gained just one more shot over the weekend, as his rivals faded in the tough south Wales conditions, to take the £300,000 first prize.
The business marketing graduate from Stockholm birdied the 4th after watching playing partner Hansen - one behind at the start - run up a double-bogey seven on the long 2nd.
Noren followed his birdie with seven successive pars and he took a giant step towards the title with a birdie at the 12th.
The only blot an otherwise impeccable round was at the 377-yard 15th when Noren's attempt to find the green with a three-wood kicked off the bank and into the hazard on the left.
But a bogey five was not enough to halt his commanding march as Noren held off flawless Frenchman Bourdy to become the fourth Scandinavian player to win the Wales Open.
Noren was one of a few players to cope with the swirling Usk Valley wind and occasional drizzle on the Twenty Ten course and only 18 players completed the four rounds under par.