Dustin Johnson shot a 31 on the back nine in Sunday's final round at the WGC-HSBC Champions 2013 at Sheshan International in Shanghai, China, and he won the tournament by three strokes at 24-under.
Johnson had built a six-stroke lead at one point in the tournament, but he found himself one shot behind Ian Poulter with six holes to play Sunday. Johnson birdied Nos. 13 and 14. After a par at the par-4 15th, Johnson teed off on the 288-yard par-4 16th with a 3 iron. His tee shot fell about 25 yards short of the green, and he pitched in for eagle.
Johnson then birdied No. 17 and sent in a par on the final hole, a par 5, to seal the victory. He finished Sunday's round with a 6-under 66.
Poulter, who finished in second place at 21-under, also shot a 66 on Sunday, but he couldn't keep up with Johnson on the back nine. A bogey at No. 15 offset birdies he had at Nos. 14 and 16.
Graeme McDowell finished alone in third at 20-under.