May 30 - June 02
Muirfield Village Golf Club, Dublin, Ohio
$9,100,000
Round 2, Round 3, Round 4

Ryan Moore birdied five of the first seven holes and then picked up shots at the 11th and 14th holes in a bogey-free round of seven under par.

Moore, whose birdie putt at four performed a full 360-degree loop around the cup before dropping in, told www.pgatour.com: "I don't think I've ever seen a ball go that far around the hole and go in the hole.

"In the five to eight-foot range, they seemed to be lipping out [this season], and today they lipped in a couple of times, so it's always nice to get that stuff going and get the momentum and keep the momentum. It just makes you feel better."

Moore heads compatriot Jordan Spieth, who started on the back nine, by a shot, with Germany's Martin Kaymer and Indian Anirban Lahiri among a group of five men one further back.

Scot Russell Knox, who dropped three shots at the two par-five holes on the back nine, finds himself in a four-way tie for eighth on four under.

Five-time winner Tiger Woods scrapped his way to a two-under-par 70, just as he did in the first round the last time he claimed the title in 2012.

Woods said: "I just need to not make a couple loose mistakes like I did today, and it could have easily turned and shot five or six under par today."

England's Justin Rose, who played alongside Woods and Bryson DeChambeau, found the going even tougher as he finished on three over, as did Northern Ireland's Rory McIlroy.