Nic Henning made seven birdies and an eagle and equaled the course record with his 9-under 62 for the first-round lead at the Joburg Open on Thursday.
Henning had five of his birdies and the eagle on the first nine to go out in 29 on the par-71 West Course at Royal Johannesburg and Kensington Golf Club. The European Tour's first 59 seemed a real possibility then, but Henning made just two birdies coming home.
Wallie Coetsee takes a two-shot lead into the final round of the Joburg Open after a 2-under 70 on Saturday.
Chasing a first European Tour title, Coetsee extended his overnight lead by a shot with five birdies and two bogeys to go 14 under par at Royal Johannesburg and Kensington.
Andy Sullivan won his second European Tour title in South Africa in just over a month after closing with a 6-under 66 for a 17-under total and a two-shot victory at the Joburg Open on Sunday.
Sullivan's second European win came in the same city as his first after he won the South African Open in Johannesburg in January.
The Englishman began Sunday three shots behind leader Wallie Coetsee at Royal Johannesburg and Kensington Golf Club, but went top after five birdies in his front nine on the East Course. He only made two birdies on the second nine but that was enough to hold off a big group of chasers down the home stretch.