Brett Quigley and Gavin Coles shared the lead after two rounds of the Shell Houston Open, one stroke in front of a four-man group that included defending champion Vijay Singh and John Daly.
Singh held a one-stroke lead after his opening 64, but he had a 1-under 71 that included a bogey at the par-5 9th that snapped a string of 64 holes at par or better at the Redstone Golf Club.
Quigley shot a second 67 and Coles had a 69 to share the lead at 10-under 134 going to today's second round (3 p.m., Ch. 4).
Jeff Maggert (68) and Joe Ogilvie (67) joined Daly (67) and Singh at 135, while Greg Owen (69) was at 136.