Justin Thomas was long off the tee and made a few long putts on the back nine to overtake Scottie Scheffler with a 6-under 66 and build a one-shot lead Saturday over golf’s best player going into the final round of the Hero World Challenge. Thomas is trying out a 46-inch driver — a little more than an inch longer than normal — that he previously used for practice at home to gain speed and length. Thomas was on the verge of falling two shots behind when he made an 18-foot par putt on the par-3 12th hole.