Rory McIlroy's 2011 Masters Tournament score looked set to dominate the leaderboard for the rest of the first round, but Alvaro Quiros overcame a bogey on hole No. 14 to also finish 7-under. Y.E. Yang and K.J. Choi are close behind at 5-under, with Matt Kuchar and Ricky Barnes tied at 4-under.
Tiger Woods scored just 1-under after shooting back-to-back bogeys during the middle of his round, putting him one off reigning champ Phil Mickelson's pace.
Local player Stewart Cink tied Woods, alternating birdies and bogeys for nearly his entire round. Bubba Watson, a hot pick to win it all, had a rough day, double-bogeying hole No. 12 and ending up 1-over. Augusta's Larry Mize may have produced one of the streakiest rounds in the course's recent history, bogeying four straight holes before shooting birdies on four straight. He also finished 1-over.