The 23-year-old former Georgia star in his second year on tour survived a final round where he had six birdies and five bogeys to shoot a 1-under 69. He finished at 12-under 268.
English made a 5-foot birdie putt on No. 16 to tie Stallings for the lead, but Stallings bogeyed No. 18 to give English the lead to himself. English made a 17-foot birdie putt on No. 17, and two-putted No. 18 to pick up the winner’s check of $1,026,000.
Mickelson shot a 67, and Stallings had a 68.