He held off Andy Sullivan's challenge to win the tournament
Padraig Harrington has won the 2016 Portugal Masters at Victoria Clube de Golfe.
The three-time major winner held off the challenge of England's Andy Sullivan to secure victory.
Having started the day on 17-under, the Dubliner made rapid progress in his final round.
He birdied the second, before following suit on the seventh, without dropping a shot on the front-nine.
And the 45-year-old upped the ante on the back-nine.
Harrington birdied the 11th, 12th and 14th holes to take the lead.
Sullivan, who was one hole further along, leveled when he and Harrington were at the 16th and 15th respectively to move on 22-under.
But Harrington birdied the 17th to advance to 23-under and a one-shot lead.
Sullivan finished his final round on 22-under.
Anders Hansen and Mikko Korhonen were right behind on 21-under, with four shots separating the lead from ninth place in a tight battle for supremacy.
There was a little bit of tension on the 18th for Harrington as his approach shot ended up on the back of the green. But his third effort on the Par 4 righted the ship somewhat to allow him to putt for par.
It is Harrington's first tournament win since the 2015 Honda Classic.
The victory is also his first on the European Tour since 2008.