Johnson: I’m feeling really good

World No 1 Dustin Johnson admits he is brimming with confidence after out-duelling Jordan Spieth at the opening event of the FedEx Cup play-offs.

Johnson birdied the first sudden-death hole on to win the Northern Trust at Glen Oaks Club on Sunday, his fourth PGA Tour title of the season but first since March.

To clinch the victory by beating an in-form Spieth at the top of his game was just icing on the cake, but it left Johnson in a bullish mood.

A nasty fall ahead of the Masters in April momentarily derailed the American’s progress, but he feels he is back to his best.

“I feel like the game is finally back in form like it was leading into the Masters,” Johnson said. “I feel like I’m swinging everything really well and I got a lot of control over the golf ball.

“I’m feeling really good. Obviously getting the win here today gives me a lot of confidence going into next week and the rest of the play-offs.

“It’s been a struggle to get back to where I belong and where I feel like I should be, which is contending in golf tournaments and playing really good golf. This week I did that – I finally got back.”

Spieth led by as many as five shots at one point during Sunday’s final round, but a bogey-free 66 from Johnson saw him force the play-off.

“I didn’t lose it tournament, he [Johnson] won it,” Spieth said afterwards. “I thought that was a fun show to be a part of.

“I feel great about my game. I had two great putting days, I had one bad putting day and one very average. Just get the putting more consistent.

“I recognized a couple tendencies that I got into my swing towards the end of the round that prevented me from hitting great iron shots like I did before, so I know what to work on.”