石川遼
Scoring proved more difficult in the second round as high winds returned to the Doral course. The low round of the day was Aaron Baddeley's 66. Hunter Mahan retained his one shot lead after a steady 71, with Martin Kaymer and Francesco Molinari a shot further back. This meant that the three leading players at the halfway stage were the World Number One, and the winners of the previous two stroke play-format WGC events. Ryo Ishikawa, who started the round in second place, shot a four-over-par 76 on the day his home nation of Japan was devastated by an earthquake and tsunami.