MALELANE, South Africa — Richard Sterne made par on the difficult 18th hole for a 3-under 69 Sunday that gave him a one-shot victory over Johan Edfors and Robert Rock at the Alfred Dunhill Championship.

The South African had a birdie at No. 15 to take the lead and then held on to beat Edfors (66) and Rock (70), finishing the tournament at Leopard Creek at 17-under 271.

Len Mattiace of the United States, who was one stroke off the lead going into the final round, dropped to 14th after a double-bogey on the 15th and a triple-bogey on the last.

Thomas Aiken, who shot a course-record 61 on Saturday to take the lead, had a 75 and finished in a tie for fourth with Rafael Cabrera Bello (68). The South African bogeyed Nos. 9 and 10, and then had a double-bogey on the 12th.