Charl Schwartzel successfully completed the defence of his Joburg Open title after a four-under-par 67 in the final round helped him finish four shots clear of Garth Mulroy.
The 26-year-old, who previously shot 68, 61 and 69, failed to produce his best golf in round four but still did enough to clinch a sixth European Tour title with a final total of 265, 19 under. Fellow South Africans Mulroy and Thomas Aiken, second and third, struggled on the par-71 East Course of the Royal Johannesburg and Kensington Golf Club, finishing with 71 and 72 respectively.
Jamie Elson was the highest-placed Briton after he ended on 13 under overall for fourth. The Englishman had been in contention all week but could close only with a level-par 71.