The morning starters had the advantage because the breezes increased as the day went on and Garcia was among those with an early tee time. Of the eight players who broke 70 Thursday, seven played in the morning.
Defending champion Phil Mickelson was among those at 70, as was Fred Couples, Boo Weekly, current U.S. Open champion Angel Cabrera and Anthony Kim, who won for the first time on the PGA Tour last week.
"I think that anything under par is a very good score," Mickelson said. "I feel as though I'm turning 66s into 70s and I'm going to have to fix that."
Masters champion Trevor Immelman withdrew Thursday, citing stomach problems similar to those that have bothered him throughout the year.
Swim Week Miami Beach 2014 [PHOTOS]