BMW Championship 2015: Final Leaderboard Scores, Prize Money Payouts and More

Jason Day entered the final round of the BMW Championship with a six-shot lead and parlayed that massive margin into a tournament championship and the world's No. 1 ranking. 

Following a two-under showing Saturday that extended his lead to 20-under, Day shot two under Sunday to put a bow on yet another dominant showing.

The win was the fifth of Day's season and the seventh of his career, and it came with an $8.25 million purse on the line. According to GolfChannel.com's Nick Menta, Day joined Tiger Woods and Vijay Singh as the only players to win at least five tournaments in the same season since 1995. 

Dating back to Day's title at the RBC Canadian Open on July 23, he's won four of his last six starts, including two playoff events. To make matters even sweeter, Day won the tournament wire-to-wire. According to PGA Tour Media, Jordan Spieth is the only other player to accomplish that feat this year.  

"I told everyone when I first came out that I wanted to become No. 1," Day said, according to PGATour.com's Mike McAllister. "Everyone kind of laughed, and that’s OK. That’s kind of a dream that I’ve always had and I’ve got an opportunity."

Day was hardly prolific, but he didn't need to be. With such a massive lead, he simply needed to play a steady brand of golf and avoid bogeys en route to staving off a pack that largely lingered five and six shots back for most of the afternoon. His final card consisted of three birdies and just one blemish on the ninth.   

And while the final round may have lacked for drama, Rory McIlroy followed up a third-round 67 with an even-par 71 to finish 14 under. The highlight of his day came on the back nine, when a birdie on 13 and eagle on 14 made his double-bogey on the 10th a thing of the past, per the PGA Tour: 

His day wrapped up in encouraging fashion: 

Rickie Fowler would have needed an epic collapse from Day to capture back-to-back playoff wins after coming out on top at the Deutsche Bank, but there's no shame in coming in at 14 under with a share of fourth place. 

While Fowler started out in relatively tame fashion with six consecutive pars, he cranked things up with back-to-back birdies on the seventh and eighth holes.    

PGA Tour on Twitter passed along video of Fowler's approach that set up an eagle putt (which he ultimately missed): 

Bubba Watson had an up-and-down weekend, but Sunday without question represented a high point for the left-handed bomber. 

Although Watson sat pretty at six under following an opening-round 65, he shot one under Friday and one over Sunday. With Day and a pursuing pack several shots ahead through three rounds, Watson didn't have a chance to wiggle back into contention.

However, he looked sharp Sunday. Not only did Watson play a bogey-free front nine, but he tallied an eagle on the par-four third.

PGA Tour on Twitter offered a look at Watson's terrific ball-striking off the tee:  

Watson's day concluded with a 17-spot leap up the leaderboard thanks to a final-round 65 to bookend his BMW Championship with stellar six-under performances. 

Jordan Spieth finished 11 shots off the lead, but at least he tallied a score in red numbers a day removed from shooting a disappointing 72. After finishing second at the PGA Championship behind Day, Spieth missed two cuts and failed to log a top-10 finish. 

While Spieth was the story of the season after capturing victories at the Masters and U.S. Open, Day is in the midst of one of the most impressive individual runs in recent memory.

With the TOUR Championship looming and a shot for Day to string together another jaw-dropping performance, don't be surprised if the Aussie throttles back toward the top of the leaderboard in Atlanta as the FedEx Cup gets set to wrap up.