Denny McCarthy ended a miserable day in a most brilliant manner Thursday at the Genesis Invitational, closing birdie-eagle for a 4-under 68 on a Torrey Pines course that more than lived up to its reputation as a beast. McCarthy had a one-shot lead over Seamus Power and Patrick Rodgers. Scottie Scheffler, the world’s No. 1 player who is starting to find his groove after a late start, missed a 4-foot birdie putt on the 18th hole and was in the group at 70.