FORT WORTH, Texas — Dustin Johnson had played Colonial only once before, six years ago when he didn't even make it to the final round.
In his return to Hogan's Alley, Johnson took a one-stroke lead after the first round of the Crowne Plaza Invitational.
Johnson shot a bogey-free 5-under 65 Thursday, driving a lot of 3-irons off the tees into the fairways and hitting 16 of 18 greens in regulation.
"I've got to keep doing what I'm doing," he said. "I've got a pretty good game plan for the golf course off the tee, so I'm going to stick to that, just trying to keep getting birdie looks on every hole."
His only birdie on the back nine was a 2-footer at the 177-yard 16th. That was enough to lead after his front-side 31 that included a 45-foot birdie putt on the difficult par-4 fifth.
Hunter Mahan led before a double-bogey 6 at the 433-yard 18th hole for 66. He was tied for second with Harris English, Tim Wilkinson and Robert Streb.
Jimmy Walker, a three-time winner this season, and Jordan Spieth were in the group of 10 players at 67.
Mahan started eagle-birdie and was 6 under after a 3-foot birdie on the 178-yard eighth hole. He had two bogeys and two more birdies before his drive at the 18th hole into the right rough, with trees blocking a clear shot to the green.
Adam Scott, playing as the No. 1 player in the world for the first time, shot 71 after playing his first nine holes at 4-over 39.
EUROPE: Thomas Bjorn set a course record at Wentworth with 10-under 62 in the first round of the BMW PGA Championship in Virginia Water, England. Bjorn had an eagle and eight birdies to end his round two shots clear of Shane Lowry, who shot 64 on the West Course. Darkness halted play with 33 in the 150-player field yet to complete the round. Rory McIlroy's 4-under 68 included holing his second shot for eagle at the par-four seventh and landing his second shot within 6 inches for eagle at the par-five 12th. Sergio Garcia withdrew with an injured left knee after shooting 1-over 73.
Champions: Joe Durant birdied his final hole for 6-under 65 and a one-stroke lead after the first round of the Senior PGA Championship in Benton Harbor, Mich. Dan Forsman opened with 66, and Brad Faxon had 67. Mark Brooks and P.H. Horgan shot 68, and two-time Senior PGA winner Jay Haas and Colin Montgomerie were in the group at 69.
LPGA: Catriona Matthew took the first-round lead in the Airbus Classic in Mobile, Ala., holing a bunker shot for eagle and finishing with 8-under 64. Charley Hull was second with a bogey-free 65. The 18-year-old English player birdied the final two holes. Second-ranked Stacy Lewis, No. 4 Suzann Pettersen and Eun-Hee Ji shot 66.