With the professionals playing alongside boys and girls from The First Tee programs throughout the country, Broadhurst had a 6-under 30 on the front nine. He had two birdies and two bogeys on the back.
U.S. Senior Open winner Gene Sauers, Craig Parry, Jay Don Blake, Kevin Sutherland and Tom Pernice Jr. were 4 under. Sauers, Parry and Blake shot 68 at Pebble Beach, and Sutherland and Pernice shot 67 at Poppy Hills.
Bernhard Langer opened with a 70 at Poppy Hills. The 59-year-old German star leads the tour with four victories this season.
Tom Watson, the runner-up last year who won the AT&T Pebble Beach Pro-Am twice and his only U.S. Open at Pebble Beach in 1982, had a 75 at Poppy Hills. The 67-year-old Hall of Famer had two double bogeys, a bogey and one birdie.
Defending champion Esteban Toledo had a 73 at Pebble Beach.