Wes Martin (66) and John Morse (67) share fourth place at 9-under-par 201.
Standly started quickly at the first hole at The Links of Glen Eagles with a birdie that not only moved him to 8-under for the championship, but calmed his nerves.
'I got real nervous on the first tee today, but I hit a good drive and made birdie and everything seemed to settle down after that,' said Standly. 'I hit really good shots and they all fell in behind each other.'
Standly, who shared the first-round lead, bogeyed two but rattled off three birdies the rest of the front nine, and made the turn at 10-under par for the tournament.
He made his leap into first place with five birdies over his final six holes to draw two clear of the field. In total, Standly hit 15 greens in regulation on Saturday, collected nine birdies, with only one from longer than 15 feet.
The last time Standly won a professional tournament was in 1993 on the PGA Tour's stop to New Orleans. He credited recent work with a sports psychologist and the calming influence of the distant Canadian Rocky Mountains for his success this week.
'I've been at real peace with myself all week,' said Standly. 'It's been real peaceful. How can you not be at peace up here? Every time I've gotten a little down, I look out over the horizon to see how pretty it is and it just seems to help my attitude a bit.'
Carter established a new course record Saturday with his 8-under-par 62. He is third on the Nationwide Tour money list and owns two victories. Another win Sunday would give Carter the automatic 'Battlefield Promotion' to the PGA Tour.
'I'm not really thinking about it,' said Carter, referring to the shot at the PGA Tour. 'I've already made my reservations for the rest of the year. If it happens, it happens.'
Tiziani, who finished sixth on the 2003 Canadian Tour money list, struggled out of the gate Saturday with a pair of bogeys to open his round. From there, Tiziani mixed seven birdies and an eagle for a round of 7-under 63.
'It's so hard to stay patient out here because these guys just go so low,' said Tiziani. 'To give away two shots right at the beginning kind of throws a sword into you. I birdied four and five and chipped in for eagle at six and it got me where I felt I was back in the game.'
Nick Cassini (65) and Wes Heffernan (67) share sixth place at 8-under-par 202, followed by Daniel Chopra (68), David Branshaw (69) and Jeev Milkha Singh (70), who are tied for eighth at minus-7.
Bobby Kalinowski, the second-round leader, posted a 3-over 73 and is part of a group tied for 11th at 6-under-par 204.