Dahmen seemed on course for victory heading down the stretch before nerves got the better of him. 

He bogeyed each of the last three holes, including a miss from three feet on the par-3 17th to ultimately close with a four-over 76. 

All Higgo had to do was stay steady in the face of Dahmen's collapse, and not even a bogey of his own at 17 stopped him from taking the crown.

The 25-year-old from SA’s Johannesburg was able to hold his never to make par on the 18th, closing with a level-par 72 to seal a one-stroke victory, his second on the PGA Tour following his victory at the Palmetto Championship four years ago. 

"This is unbelievable and this is why I play the game. You know, the journey, I'm going to go through a down again, everybody does, I'm going to have ups. I just truly enjoy the journey," he said. 

Dahmen was left to reflect on his disastrous finish, which he admitted was tough to take. 

"I think I'm in a little bit of shock, honestly," he said. "It's not how you win a golf tournament, I'll tell you that. I don't deserve to win it. Bogeying the last three is inexcusable.

"This one could take a while to get over," he added. "It's one of those things, you learn more in defeat, unfortunately. This one's going to sting for a while." 

--SABC--