When a winner is crowned Sunday in the Northwestern Mutual World Challenge, it will mark the end of a 15-year stay at the Jack Nicklaus-designed Sherwood Country Club in Thousand Oaks, Calif. The inaugural World Challenge was held at Grayhawk Golf Club in Scottsdale, Ariz., but since 2000, Sherwood Country Club has served as the event’s home base. The tournament moves to Orlando, Fla., next year.