ScottPiercy closed with 61 to be third on 23 under, one shot ahead of fellow American Ryan Moore (65), while Ryan Palmer carded 62 for fifth on 19 under.
Donald, Furyk (69), Garrigus (64) and Bae (68) finished the tournament on 13 under, one stroke clear of American trio ScottPiercy (62), Jeff Overton (66) and Ken Duke (68).