Vijay Singh currently holds a one-stroke lead over Dustin Johnson, Ryan Moore and Rory McIlroy after three holes in third-round action at the 2012 BMW Championship.

Singh is at even-par for the day, and it looks like he's going to have to pick it up a bit to keep Johnson, who is already at 3-under for the day after five holes, off of his tail. Moore and McIlroy are also at even-par through three holes.

Phil Mickelson, Graham DeLaet and Lee Westwood round out the top five, as all three golfers are at 11-under through four holes. Tiger Woods, who began the day a shot back of Singh, has fallen three shots off the lead, as he is 2-over after four holes for the day and now at 10-under for the tournament.

The best round of the day currently belongs to Ben Curtis, who is 4-under through 11 holes. He is now a 9-under for the tournament.

Texas native Bob Estes is doing his best to hang around, as he is 3-under through nine holes, bringing his score to 7-under for the tournament. Fellow Texan Ryan Palmer has struggled a bit for the second consecutive day, as he sits at 1-over through ten holes after shooting a 1-over 73 on Friday.

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