Sean O'Hair finished his front nine at even par and is tied for 21st after half a day of action at the 2012 Masters.
O'Hair, who lives in West Chester, PA, put together a solid front nine, birdieing the par five second hole and stringing together seven pars before finishing his front nine with a bogey.
Henrik Stenson started on a tear and leads midway through Thursday's action at 6-under through 11 holes. Other notables include Tiger Woods, who had three birdies and a bogey on his first 10 holes to reach 2-under, and Rory McIlroy, who tees of at 1:42 p.m. ET.
For a complete 2012 Masters leaderboad, click here.
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