The Clara golfer finished on 17 under par for the tournament.
Shane Lowry has won the BMW PGA Championship.
He says he's the happiest man in the world right now after taking a big victory at Wentworth
The Offaly man shot a brilliant round of 65 to take the win by one shot on 17 under par.
Rory McIlroy had a chance to eagle the final hole and send it to a playoff.
The former world number one missed by inches which meant a birdie on the last gave him a final round of 67.
That's enough to end in a tie for second on 16 under par alongside Spain's Jon Rahm.
Graeme McDowell finished on 7 under par and in a tie for 50th place.