Mark Wiebe fired a 4-under 66 in the final round last year at Birkdale to
match Bernhard Langer after Langer double-bogeyed the final hole. The pair
ended at 9-under par and the two headed to a playoff. That extra session
carried over into Monday morning, where Wiebe won the title on the fifth
playoff hole. They had played two extra holes on Sunday before darkness
pushed the conclusion into Monday morning.