It's Africa's Major for a reason and what a special place it is. "There are some great names on that trophy and I'm glad I've been able to get my name on it, too". The victory is the eighth of his European Tour career and first since the Qatar Masters early past year; an emotional win in the tournament styled as "Africa's major".
The 29-year-old shot a stunning six-under 66 for a score of 11-under par to win by a stroke for his first European Tour title this year and eighth on tour since 2012.
His start apart, Grace believes the course suits him and hopes that his determination and comfort in the conditions will stand him in good stead.
With three birdies on his front nine, and a further three on his back nine, and not a single shot dropped, this was a master class in consistency.
Branden Grace beat Luke Donald and Russell Knox... "I think to be in with a chance of winning the Race to Dubai, it's pretty special", said the player from Southport. That was the last of eight birdies on the day for the Austrian. I try to play to the middle of the green.
"There's still an terrible long way to go but if I can do what I did today, I'll be in with a good shout".
"I need a good week here to get into Dubai next week so that's at the back of my mind, but I first want to win the tournament; the rest will then take care of itself".
Dual Ryder Cup star Francesco Molinari produced the lowest round of the day with the Italian managing seven birdies in his bogey-free 65 to share fifth place on three-under par. "But I kept hitting the ball great and giving myself chances".
Jamieson will be joined in that event by 29th-ranked Richie Ramsay and David Drysdale (54th), with Marc Warren agonisingly missing out by one spot after he slipped to 63rd following a disappointing finish in South Africa.
Sadly, the rest of the South African challenge faded on the final day, with lucky last-in-man Darren Fichardt finishing strongest of the local contingent.
He hit all 18 greens in regulation in a bogey-free round, as Jamieson struggled to a 70 with a double bogey on the 8th.
He shot a final-round 68, which included five birdies and a bogey to be at five-under overall and a tied-sixth finish.