The 2012 BMW Championship is heading for an exciting conclusion, with Phil Mickelson holding just a one stroke lead at 17-under-par over Robert Garrigus, Vijay Singh and Rory McIlroy.
Mickelson is through three holes, where he is one-under on Sunday. Garrigus has catapulted himself into the tie for second place with a hot start on the course, as he is two-under through five holes.
Singh hasn't been able to make his move after beginning the day tied with Mickelson for first. He is at even par through three holes. McIlroy began the day one stroke behind Mickelson, a position he still holds after shooting one-under through four holes.
For a full look at the leaderboard, click here.