The opening round of the 2011 US Open is in the books, with Rory McIlroy matching his strong back nine with an equally bogey-free front nine. He's taken a 6-under score into the clubhouse at Congressional, putting him three strokes up on the leaderboard's second-place players, Y.E. Yang and Charl Schwartzel.
Masters winner Schwartzel was quiet other than a run of three birdies on holes five through seven, putting him one stroke ahead of countryman Louis Oosthuizen and a crowd that includes Sergio Garcia and one-time leader Ryan Palmer. Among the pileup at 1-under are defending champion Graeme McDowell, Stewart Cink, Chez Reavie and Davis Love III.
Phil Mickelson, who found the water on his first shot of the tournament, ended up 3-over. 2009 winner Lucas Glover is 5-over, with K.J. Choi among those at 6-over.