Just six days after his impressive 4th place finish at the Open Championship and on top of two runner-up finishes this season, Furyk added a second round of 63 to share the lead with the Petrovic who has really struggled with form of late.
"Well, it's even farther away than I'd really even want to think about," said Furyk when asked about adding a third Canadian Open and first at this venue to his CV.
"Obviously winning any event is special. I've had a lot of success here, so I've got some good feelings and really a lot of support here. But we're only at the halfway point. Tomorrow really is still jockeying for position.
"I really feel like I'm hitting the ball well. I'm rolling some good putts. Really it's a matter of patience. When I'm striking the ball well, I'm usually fighting with myself getting too aggressive and aiming at too many pins and not playing the intelligent shot and the smart shot, so I've done a good job of being really patient the last two days, and because of that I've given myself a lot of opportunities."
The leading Australian at present is Greg Chalmers who is in a share of 9th with New Zealander Danny Lee.
Tim Wilkinson and Robert Allenby share 17th position and former winner Nathan Green is in a share of 20th.