Louis Oosthuizen turned in a performance for the ages Sunday in the third round of the Deutsche Bank Championship. He is 19-under par, which is a new 54-hole tournament record.
Entering Monday's Round 4, the tournament still has a few contenders capable of catching Oosthuizen at the top. Rory McIlroy, Tiger Woods and Dustin Johnson are all within striking distance of first place.
The race for the FedEx Cup is coming down to the quick, and this tournament is a major stepping stone. The final leaderboard here will set up the BMW Championship and will play a major hand in who finds themselves in the top 30 to qualify for the Tour Championship.
Let's take a look at the top of leaderboard after Sunday's competition:
*Click here for full leaderboard
Golfers to Watch
Woods put together another sharp round Sunday, and is still in position to climb the leaderboard, finishing with a 68 in Round 3.
He drove the ball well off the tee and didn't force things on the green. But none of that will matter if he can't close on Sunday. Woods has struggled to do so in recent tournaments, but he's looked especially sharp at TPC Boston in Norton, Mass.
Speculation about Woods' chances to win the Tour Championship are already in full swing, and that starts with his closing performance on Labor Day.
Make sure you tune in to see if Woods has what it takes.
Johnson has played a solid tournament through three rounds, and he saved his best for Sunday. He only missed two fairways, leaving his driving accuracy at roughly 86 percent for the day.
He putted extremely well, and if it wasn't for bogeys on Hole 6 and 16, he would be in even better position. He wound up with a 65 overall and is in third at 13 under.
Despite Oosthuizen's jaw-dropping success, the Deutsche remains wide open. Dustin Johnson is right in the thick of things, and he shouldn't be overlooked in Round 4.
McIlroy struggled at times, but he's still on Oosthuizen's tail. If he wants to catch the South African on, McIlroy must be more accurate off the tee.
He was able to play well off of the fairways he did hit, but he struggled in every other area. He gained nearly 1.3 strokes with his putting, which must also be improved.
McIlroy entered the round behind two consecutive 65s, in Rounds 1 and 2, and he turned in a 67 in Sunday's action.
Oosthuizen's 63 was truly something to behold. At one point, he turned in seven straight birdies.
His game on the green was precise, picking up nearly four strokes with his putting, and Oosthuizen didn't bogey a single hole until the 17th Sunday.
His performance was good enough that it didn't matter what everyone else did. If he's this dominant in the final, this tournament is all but sewn up.
*All highlights via PGATour.com