Should Kirk, 29, claim the PGA Tour-ending Tour Championship at East Lake Golf Club in Atlanta, Georgia, he will top the points list and claim the extravagant cash bonus.
Kirk claimed the Deutsche Bank Championship, just his third Tour title, to catapult himself to the helm of the standings, but he said he would not be following the mathematics involved in sealing him the lucrative prize.
Depending on other results, Kirk can finish as low as last in the 29-man field and still win the FedEx Cup, while a top-five finish would give him a fairly strong chance.
"No, I'll try to look at it as little as possible," Kirk told the PGA Tour's website.
"The way that I see it, and the way that I've been successful in the past, when I play my practice rounds and preparing for a tournament, I have a very, very set game plan for how I like to play golf courses.
"And I never play over-the-top aggressive anyway, so there's no reason why - regardless of what's going on - I should defer from the set game plan I have.
"So it can only be a distraction to me, to be constantly monitoring that kind of thing. I won't be looking at a whole lot of leaderboards, I won't be looking at the standings.
"I'm just going to try and go and play as well as I can every day."
Kirk said he learnt not to follow the fortunes of his standing in the FedEx Cup from last week's BMW Championship, as he tried to nurture himself into the points list lead.
"Yeah. I unfortunately looked at the projected standings before I played on Sunday, and wished that I hadn't," the Georgia native said.
"It was kind of an interesting feeling, I went out and I got off to a good start that day and got it to four-under-par and made a few bogeys, and I knew that all I had to do was move up a little bit on the leaderboard to stay at number one."
And playing for the glory of winning the season-ending play-offs is what Kirk is doing, as he is not fazed by the pressure of playing for a $10m cheque.
"It doesn't seem real - it seems like Monopoly money to be honest with you," Kirk said of the FedEx Cup prize.
"It would be really, really awesome to win it, but it wouldn't really change a lot for me.
"I'm not going to go buy an aeroplane or do anything crazy.
"I have been very blessed in my career so far, and live a very, very comfortable life, and my family's very well taken care of.
"It'll just be more money in the bank. My life wouldn't change at all to be honest with you."
Kirk will tee off in the final group alongside fellow American Billy Horschel, at 1400 local time (1800 GMT).