Trevor Fisher Jr. finished with a 64 to win the Africa Open by five shots on Sunday for his first European Tour title.
The South African had nine birdies and a single bogey in his final round to finish on 24-under 264 overall, well clear of England's Matt Ford (67) in second.
Eduardo de la Riva, Jorge Campillo and Morten Orum Madsen were a further three shots behind Ford at East London Golf Club.
Fisher Jr. had a two-shot overnight lead over Ford, who stayed in contention in the final round until a two-shot swing at No. 9, where Fisher made birdie and Ford made bogey.
The result continues South Africa's dominance at the Africa Open. Home players have now won eight straight editions of the tournament.