Two-time winner Jim Furyk birdied two of his last four holes Friday for a 7-under 63 and a share of the Canadian Open lead with Tim Petrovic.
The 44-year-old Furyk, the 2006 winner at Hamilton and 2007 champion at Angus Glen, matched Petrovic at 10-under 130 at Royal Montreal. Petrovic followed his opening 64 with a 66.
Canada's Graham DeLeat, paired with Furyk, was two strokes back along with Kyle Stanley. DeLeat, trying to become the first Canadian winner in the event since 1954, had a 63. Stanley shot 67.
Graeme McDowell had a 65 to top the group at 7 under.
Furyk won the last of his 16 PGA Tour titles in 2010. The 47-year-old Petrovic won his lone PGA Tour title in New Orleans in 2005.