His card included 7 birdies on the day.
Shane Lowry’s just a shot off the lead as the opening day of the PGA Championship draws to a close at Wentworth.
Five birdies on his back-9 saw the Offaly golfer card a 5-under 67.
Padraig Harrington and Graeme McDowell are in the clubhouse on level par and 1-over respectively.
Tyrell Hatton and Justin Harding are the joint clubhouse leaders on 6-under.