Bernhard Langer won for the 18th straight year on the PGA Tour Champions, holing a 30-foot birdie putt on the final hole to hold off Steven Alker in the season-ending Charles Schwab Cup Championship on Sunday at Phoenix Country Club. The 67-year-old Langer closed with a 5-under 66 — shooting his age or better for the third straight day and 23rd time on the tour — for a one-stroke victory over defending champion Alker — who won the season points title and a $1 million bonus — and Richard Green. “It’s unbelievable, I can’t describe it,” Langer said.