Jason Day is ready to get over the line at the BMW Championship after letting a few recent tournaments slip from his grasp.

Jason Day admits he’s annoyed there aren’t more trophies in his cabinet.

While world No.6 Day takes plenty of positives from contending in the opening two US PGA Tour playoffs tournaments, not winning irks him.

In a position to win both, the 26-year-old Australian was overtaken by a hot Hunter Mahan in week one when he tied for second then he produced a poor final back nine and faded to tied seventh in week two.

“There is no doubt the last round was disappointing and I expected a lot more out of myself than the finish I produced,” said Day ahead of this week’s penultimate playoff event, the BMW Championship at Cherry Hills Country Club in Colorado.

“It has been a pretty good year considering I have played just 13 events and I am seventh on the FedEx Cup (season points) list but I am very motivated to do more,” he said.

“I am doing everything I can, practising as much as I can, because I feel like I am ready to go out there and win.”

Having missed a big chunk of the season with injury and illness, Day is trying to make up for lost time.

While the likes of Adam Scott then Rory McIlroy have claimed the world No.1 spot this year, Day believes it could have been him.

“I am starting to believe more in myself and I guess I am playing a little bit of catch up because I was very confident I could have had a real shot at No.1 in the world if I wasn’t injured,” he said.

“The fire is in me, I want it, and I am convincing myself I am ready to win events and get back towards that goal.

“I am not going to give up. I am fit now and I am going to put every last bit I have into these two weeks.”

Day now has two US tour wins to his name along with seven runner-up finishes.

He is aware of talk he has trouble closing out tournaments, having also contended at the recent US PGA Championship but the Queenslander refuses to be dragged into the negativity.

He points to his win at the World Cup in Melbourne last November and his World Golf Championship Match Play win in February where he was able to hold off some miraculous play by Frenchman Victor Dubuisson to clinch the title.

“Lately I have gotten myself in position a few times so that is something,” he said.

“I would much rather be there with a chance and not finish it off than not be there at all.”

Like Day, Scott, currently world No.2 but back in 13th on the season points list, is targeting a move inside the top five this week so that a win at the Tour Championship next week would guarantee him the FedEx Cup and $US10 million ($A10.8 million) bonus.

“I just need some putts to drop and some momentum to come to get me going,” Scott said.

“I feel like my game is in really good shape but I am just lacking some positive momentum in rounds.

“The way I see it, two good weeks is not a lot to ask out of myself.

“My game is right there so I don’t think I am asking a lot to have two big performances and win it all.”