David Morland IV fired a course-record 7-under-par 63 to move to 8-under through two rounds at Royal Montreal Golf Club, one shot off the lead.
Dicky Pride is the man at the top, thanks to a second-round 64. Matt Gogel (67) shares second place with Morland. Scott Verplank, the first rookie to be a captains selection for the United States Ryder Cup team, matched Morlands 63 to move into solo fourth place at 7-under.
Meanwhile, overnight co-leader Tiger Woods recorded a triple-bogey 7 at the par-4 2nd en route to shooting a 3-over-par 73.
Woods now stands at 2-under for the tournament, seven shots off the lead.
Tiger was even par on the day through 10 holes. But at the 2nd ' his 11th hole ' Woods hit his tee shot into the right trees. After being unable to find the ball, the defending champion went back to the tee box and re-teed.
A ball ' which was thought to be Tigers original tee shot ' was eventually spotted in some tree limbs, but no one was able to knock loose the ball and identify it.
One ball was found, but it proved to be a Titleist, not a Nike.
As it was, Woods again missed the fairway with his third shot and missed the green long with his approach shot. He then hurriedly pitched 15 feet short of the cup and two-putted for a triple bogey ' his first since the 12th hole in the final round of this years British Open.
I hung in there, Woods said. Anybody under par has a chance to win.
Pride avoided such disasters on Friday. The 1994 winner of the FedEx St. Jude Classic carded six birdies and no bogeys in the second round.
Ive hit the ball solid and Im putting well, so Im giving myself opportunities to make birdie and thats kind of what you need to do, Pride said.
Pride's 64 was a new course record - for about five minutes. That's when Verplank posted a 63, and then Morland did the same moments later.
Morland is competing in his 23rd PGA Tour event of the season. Hes missed 11 cuts and has yet to finish inside the top 20.
But the familiarity of home has provided a comfort zone. The North Bay, Ontario native twice recorded three consecutive birdies in the second round. Morland is trying to become the first countryman to win his National Open since Pat Fletcher in 1954.
News, Notes and Numbers
*For the second straight year, Mike Weir made the cut in the Bell Canadian Open. Weir shot a second-round 1-under-par 69 to move to 3-under for the tournament. The Canadian was 0-for-9 in cuts made at this event prior to 2000.
*Vijay Singh missed the cut after rounds of 72-71, ending the second-longest streak among active players at 24. Woods increased his streak to 76.