Final Round at 2011 Shell Houston Open

1 of 5 Dave Einsel/AP
Phil Mickelson shot a 65 in the final round to finish 20-under par, three ahead of Scott Verplank (68) and second-round leader Chris Kirk (67).
2 of 5 Dave Einsel/AP
Mickelson birdied six out of seven holes during one stretch during his final round to surge into the lead.
3 of 5 Dave Einsel/AP
Scott Verplank took the lead after three front-nine birdies, but bogeyed the 14th and 16th holes to fall back.
4 of 5 Dave Einsel/AP
Padraig Harrington shot a two-under 70 on Sunday to finish tied for eighth.
5 of 5 Dave Einsel/AP
Hunter Mahan made four bogeys on the back nine to fall into a tie with Harrington for eighth place.