Zach Johnson fired a six-under-par 64 in the final round to claim a two-stroke victory at the Texas Open. Entering the day a shot off the pace, Johnson had seven birdies and a bogey to finish at 19-under 261, two strokes ahead of three players who tied for second.

Charlie Wi carded a bogey-free nine-under-61 to share second on 17-under 263 alongside Mark Wilson and Tim Wilkinson.

Johnson started with a birdie but it was cancelled out by a bogey at the second. He had three consecutive birdies starting at the sixth and he picked up another birdie at the 10th.

Johnson led by one after a birdie at the 14th and he came to the 18th tee needing just a par to clinch his first win since the 2007 AT&T Classic. He did one better, clinching the win with a birdie.

Defending champion Justin Leonard came up short in his bid for a fourth title here. He fired a 66 yesterday to finish at 11-under 269.