ST. SIMONS ISLAND, Ga. -- Webb Simpson remains safely atop the leaderboard after his 7-under 63, but 2003 British Open Champion Ben Curtis and two-time TOUR winner D.J. Trahan lead the afternoon charge at 3 under. Curtis, who checks in at No. 148 on the money list, played the back nine in 3-under 32 and has made the turn to the front side with a par on the first. The 34-year-old Ohioan added two PGA TOUR victories in 2006 to his British Open title, but hasn’t won since that ’06 season. He has two top-15 finishes this year, most recently a tie for 13th at the Memorial Tournament near his hometown of Ostrander, Ohio. Trahan, who hasn’t won on TOUR since 2008, is closer to the money list bubble at No. 130 in the standings. He rattled off four consecutive birdies on holes 12 through 15 but gave a shot back on No. 17 to turn at 3 under.