Carl Petersson grabbed the 54-hole lead at the 2012 RBC Heritage at Harbour Town in Hilton Head, chasing down Colt Knost for a one-shot margin heading into the final round on Sunday.

Peterson fired a five-under par round of 66 on Saturday afternoon to turn a two-shot deficit into a one-shot lead.

Both Peterson and Knost have separated themselves a bit on the leaderboard as well, with no player closer than three shots. Continue reading →