Aussie Cameron Davis has won his second PGA Tour event with a one-shot victory at the Rocket Mortgage Classic in Detroit, pocketing a cool $2.5 million.

Davis shot a final round 2-under to be clubhouse leader, and then was forced to watch on as those behind him faded.

Akshay Bhatia only had to make par on the 18th hole to force a playoff. He left himself a long putt to give himself an outside chance at making birdie to claim victory outright, but left the putt well short.

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His par putt caught the low side of the hole, but never really looked like dropping. 

It was Bhatia’s only three-putt of the tournament. Having played the opening three rounds bogey-free, he made his first on the par-4 third hole, and the second on 18.

Davis watched the drama unfold from the range where he was trying to stay loose in the event of a playoff.

“I don’t know what to say,” he said through tears after the win was confirmed.

“From where I was a couple of weeks ago to today, I’m a completely different person. I’m a little emotional actually.

“I wouldn’t wish what happened to Akshay on anyone.”

Davis finished in a tie for 12th at the Masters, but has battled with form in the seven events since. 

His best finish in that time was a tie for 38th at the Wells Fargo, and he missed the cut at both the US Open and PGA Championship.

“I started working with a hypnotherapist a few weeks ago to take another angle into trying to get myself sorted out, and Grace has done an awesome job,” Davis said before thanking his team.

“I had a lot of support to get me out of the doldrums there. 

“I saw a little bit of a spark last week, but nothing to show this (was) coming. This is crazy.”

It might also be a case of what-if for Min Woo Lee, who also made bogey on the 18th which cost him a playoff against his countryman.

Lee made birdie on the third, but three-putted for double bogey from six feet on the par-five seventh. 

He rallied to make five birdies from the next 10 holes, including two chip-ins from the rough on the eighth and 15th holes.

“I had a nice lie, and I thought I was a good chance there,” Lee said of his chip-in on the 15th.

“I needed to play aggressive – I was unlucky with the bogey on the last, but I played really good.

“There’s a lot of things I need to work on to get it to the next level but I’m very happy with the week.”

Lee will partner Jason Day at the Olympics later this month as Australia’s two highest ranked male golfers. Lee’s sister, Minjee, will partner Hannah Green in the women’s draw.