IRVING, Texas - Keegan Bradley shot a 10-under-par 60 to lead the field in the opening round of the Byron Nelson Championship on Thursday.

Bradley broke the TPC Four Seasons course record and matched the best round ever in the Nelson. He equaled Phil Mickelson's opening 60 at Phoenix as the best round on the tour this season.

Charl Schwartzel was 3 strokes back, Robert Karlsson, Harris English and Ted Potter Jr. shot 64, and two-time major champion Angel Cabrera, Ryan Palmer, and Camilo Villegas were at 65.

Guan Tianlang, the 14-year-old amateur from China, shot 70 in his second tournament since making the cut at the Masters.

LPGA Tour

MOBILE, Ala. - Lexi Thompson birdied four of her last five holes for a 7-under 65 and a share of the first-round lead with Eun-Hee Ji in the Mobile Bay LPGA Classic.

World Match Play

KAVARNA, Bulgaria - Ryder Cup winners Ian Poulter and Nicolas Colsaerts were the unexpected losers on the first day of the World Match Play Championship.

Poulter was handed a 3-and-2 defeat by Thailand's Thongchai Jaidee; Colsaerts was never in front against Branden Grace, with the South African winning, 4 and 3.