By Mark Lamport-Stokes
KOHLER, Wisconsin, Aug 14 (Reuters) - Swede David Lingmerth birdied three of his first five holes on Friday to take the outright lead as bright sunshine and relatively calm conditions greeted the early starters in the PGA Championship second round.
Lingmerth, who had opened with a five-under-par 67 to trail overnight leader Dustin Johnson by one shot, drained a 24-foot putt at the par-four first and a nine-footer at the par-three third.
The Swede, who won his first PGA Tour title at the Memorial Tournament in June, then rolled in a 13-foot birdie putt at the par-five fifth to get to eight under overall.