Jason Day says 'everything feels good right now' after rounds of 61 and 63

Jason Day admits he is currently in dreamland after opening a five-stroke lead at the halfway stage of the BMW Championship.

The 27-year-old Aussie is in the form of his life as he chases a fifth PGA Tour victory of the season and fourth in his last six starts.

And on the opening two days at Conway Farms in Illinois, Day has posted rounds of 61 and 63 to mover five shots clear of the field.

Day, who was unable to complete his opening round on Thursday evening due to bad light, returned on Friday morning facing a 44-yard chip that, if holed, would have given him a 59.

In the end he needed three more swings for a 61 before continuing in his rich vein of form in round two.

Day has broken 70 in 20 of his most recent 22 rounds which have been played at a cumulative 83 under par.

And Day said of his hot streak: "I don't know how else to explain the way I've been playing.

"I feel very free, like there's no stress and there's obviously stress. I'm just enjoying it.

"Everything feels good right now. I'm just going out there and trying to get the next birdie and the next birdie after that.

"I'm just trying to push forward as much as possible. I feel good about my game."

As for 'failing' to hole his chip shot at 18 in round one, he added: "I came in this morning and obviously when I didn't shoot 59 I felt like everyone was disappointed in me.

"But I've got two more days left. We're going to have a tough day on Saturday with a northerly wind that's blowing from 10 to 20 miles an hour so we'll have to try to stay patient."

As for his closest rival in the race to end the season as the PGA Tour's No 1 golfer, and winner of the FedEx Cup, Jordan Speith is tied-for-4th.

But despite excellent rounds of 65 and 66 is seven behind Day and Spieth said: "The way I finished (four under in final five holes) has given me an outside chance.

"But what he's doing right now on the golf course is something I haven't watched or witnessed in my own group live."

Meanwhile, Rory McIlory is just inside the top 10 after 36 holes but nine shots adrift of day.

And the 26-year-old from Northern Ireland believes he should be higher up the leaderboard.

He added: "It definitely feels like I could have been a lot of shots lower than I was.

"I hit the ball well from tee to green - that hasn't been the problem over the last few weeks - it's just been converting the chances I've given myself.

"But six under (65) is still a good score - a lot of positives to take from it - but I know I'm going to have to shoot a couple of really low ones over the weekend to have a chance."