Double major winner Xander Schauffele called himself “an idiot” after carding a quadruple-bogey eight on an opening day to forget at the PGA Tour’s Zozo Championship in Japan on Thursday.Defending champion Collin Morikawa opened with a birdie three, but a bogey on the fourth hole and a double bogey two holes later on the par-five sixth set him back before he recovered with three more birdies for a one-under par 69.