Jason Day is not satisfied with his three wins in four tournament starts after he battered the field at The Barclays into submission.

Day surged to the top of the Fed-Ex Cup rankings with a six-shot victory in New Jersey as he carded weekend rounds of 63 and 62 for an impressive win.

It continues a rich vein of form for the Australian as he put the pain of missing out on Open Championship glory at St Andrews behind him with victory in the Canadian Open then landed his maiden major success in the US PGA Championship at Whistling Straits.

He also finished 12th in the WGC-Bridgestone Invitational and Day admits he is playing with complete confidence right now.

“To be able to really get to a certain number, then go, okay, I need to get one more,” he said of insatiable appetite for birdies.

Day could go to world number one next week at the Deutsche Bank Championship in Boston, but he knows that will not be easy with Rory McIlroy and Jordan Spieth both in the field.

“It always is a goal of mine,” Day said. “I can only control what I can control. I can’t control them. Seeing Jordan and Rory are going to play next week, they’ll most likely play well.”

The 27-year-old is relishing the challenge at TPC Boston and he is determined to keep his impressive run of form going for as long as possible.

“The good thing about it is it’s not over. I have this great momentum going into next week to a course I absolutely love. It’s only positive stuff moving forward from here,” Day added.