DUBLIN, Ohio -- Bill Haas bogeyed the 18th hole but he still owned a two-stroke lead when he finished off a 67 that was the low round on a blustery morning at Murifield Village.
Haas seized control with a birdie-eagle-birdie spurt in a front-nine 32, then held on over the final nine holes. His round of 5 under was one of just six in the 60s shot during the morning wave.
Tiger Woods, who is seeking his fifth title at the Memorial Tournament presented by Nationwide Insurance -- and his second straight, struggled on the greens again and ended up with a round of 74. He's 1 over for the tournament and trails Haas by 10 strokes.
Matt Kuchar, who won the World Golf Championships-Accenture Match Play Championship earlier this year and finished second last week, shot a 70 that left him alone at 6 under. Robert Karlsson's round of 71 left him at 3 under through 36 holes.
The other sub-70 rounds were 69s by Pat Perez, who stands 3 under for the tournament, and Charley Hoffman and Bo Van Pelt, both of whom are tied at 2 under. Hunter Mahan shot a 68 that left him tied with Perez while Fabian Gomez had the same score but is well back at even par.
Guan Tianlang, the 14-year-old amateur from China, will miss his second straight PGA TOUR cut after following an opening 72 with a 79 on Friday. He was low amateur at the Masters when he finished 58th and also made the cut at the Zurich Classic of New Orleans, finishing 71st there.