CAMBRIDGE, Ontario — Matt Bettencourt called his opening-round 9-under-par 63 at the Canadian PGA Championship presented by MasterCard on Thursday the best competitive round he’s ever played on the Nationwide Tour or anywhere else for that matter. Bettencourt, a 30-year old from Modesto, Calif., ripped off nine birdies in an 11-hole stretch and grabbed the first-round lead at Whistle Bear Golf Club. Bettencourt’s 63 gave him a two-shot lead over Doug LaBelle and Jason Buha, each of whom matched Charles Warren’s 2004 course record of 65.