An emotional Shane Lowry described his victory at the BMW PGA Championship as "one for the good guys".
Lowry finished ahead of Jon Rahm and Rory McIlroy by one shot at Wentworth to win the sixth DP Tour title of his career in a tournament that had caused some controversy with the inclusion of players from the breakaway LIV Golf series.
One of those players, Patrick Reed, was the clubhouse leader after going round in 63 on Sunday to finish on 14 under overall, before an even better round from Rahm of 62 gave the Spaniard a two-shot clubhouse lead.
Lowry managed to catch Rahm on 16 under with six holes remaining, but struggled to edge ahead as he could only score par on his next five holes.
He eventually managed to add that elusive birdie on the par-five 18th to secure the win, and admitted afterwards it was a tournament he particularly wanted to succeed in.
"It means a lot," he said. "It's been a good year but I felt like I've been close a few times and I only have a few tournaments left this season and I really wanted to try and win one.
"Obviously this one is right up there at the top of the list. I love it here, I've contended in the past and even going down the back nine today… the bad shots I've hit down the years when I've been in contention actually started to creep into my head. It's amazing what this game does.
"I'm so happy, words can't [describe] how happy I am, how much this means to me, how much I love this tour, how much I love this tournament, and I'm the happiest man in the world right now."
The Irishman recalled the 2017 tournament when he had been in contention against eventual winner Alex Noren, only for the Swede to shoot 62 in his final round just as Rahm did on Sunday.
"I remember Alex Noren did that to me one year, the year he won he went out early and shot 62 and that came into my head," he added.
"I got to 16 [under] and tried to get past that but I also had to worry about Rory behind me because he could do anything down the last few holes, you know how good he is.
"I said to my coach this morning 'I need to just allow myself to play golf today, I'm playing the best golf of my life and I need to just allow myself to do that', and I did."
When asked if the circumstances around the tournament heightened his emotions when he won, Lowry conceded it had been a factor, having been among those who openly criticised the inclusion of LIV Golf members.
"I think so, yeah. I made no secrets as to how I feel about the whole thing at the start of the week and I wanted to go out and win this tournament for myself first and foremost, but I think for this tour and everyone who has stayed loyal to this tour and everyone that's done everything for this tour," he said.
"I really feel like this is one for the good guys."