SHANGHAI — Xander Schauffele gave the Americans a sweep of the World Golf Championships and quickly put a winless sophomore season behind him.

Schauffele made birdie on his final three holes Sunday, the last one a two-putt birdie from about 30 feet on the par-5 18th hole to beat Tony Finau in a sudden-death playoff and win the HSBC Champions.

He began the tournament by celebrating his 25th birthday.