Baddeley nailed down his third career PGA Tour win after catching up with and passing the two-time champion. Couples began Sunday's final round with three straight birdies but then played at a 5-over clip the rest of the way, tumbling into a tie for seventh place.
Baddeley ended at 12-under-par 272, two better than Vijay Singh, who also carded a 69 to grab sole possession of second place at minus-10.
Kevin Na (71) ended alone in third at 9-under 275, while Jimmy Walker (68), Robert Allenby (68) and Ryan Moore (69) were knotted in fourth place at minus-8.
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