The former U.S. Open champion won $10,000 with a birdie on the third hole at Tanah Merah Country Club, and made a five-foot birdie putt at No. 11 to win $60,000.
Padraig Harrington finished second. He made a birdie at the 18th for $45,000, and ended with $50,000.
Vijay Singh won $45,000, and Sergio Garcia won $15,000.