Spijk - Chinese golfer Wu Ashun fired a four-under-par final round of 67 on Sunday to edge out England's Chris Wood by one shot and win the Dutch Open at Spijk.
The 33-year-old had started the day one stroke behind Wood, but a strong finish with three birdies in his final five holes saw him claim his third European Tour title on 16-under for the tournament.
"Unbelievable this week," Wu, the world number 344, told europeantour.com. "I am so happy, very happy today and thank you everyone.
"We just fixed my swing at the beginning of the year and we still trust that we are going the right way."
A double-bogey at the 12th hampered Wood's challenge, and the world number 95 failed to find a birdie at the par-five 18th which would have forced a play-off, three-putting on the final green.
Padraig Harrington continued his recent return to form since losing his PGA Tour card, as the three-time major winner signed for a three-under 68 and a solo finish of fifth.
Belgian Thomas Detry, who had equalled the course record with a 63 on Saturday, ended tied for third with Japan's Hideto Tanihara.
Leading final-round scores from the European Tour's Dutch Open at Spijk on Sunday (par 71/GBR & IRL unless stated):
268 - Wu Ashun (CHN) 64-66-71-67
269 - Chris Wood 65-70-65-69
270 - Thomas Detry (BEL) 74-67-63-66, Hideto Tanihara (JPN) 68-70-63-69
271 - Padraig Harrington 68-70-65-68
272 - Eddie Pepperell 66-72-69-65, Soren Kjeldsen (DEN) 66-73-68-65, Bradley Dredge 70-67-69-66, David Drysdale 69-65-69-69
273 - Jordan Smith 66-71-68-68
274 - Pablo Larrazabal (ESP) 68-69-70-67, Austin Connelly (CAN) 68-70-69-67, Benjamin Hebert (FRA) 66-69-71-68, Erik van Rooyen (RSA) 73-66-67-68
275 - Jason Scrivener (AUS) 66-73-71-65, Martin Kaymer (GER) 70-67-70-68, Jorge Campillo (ESP) 69-69-69-68, Richard McEvoy 67-71-64-73, Jonathan Thomson 69-64-68-74