The 27-year-old German, who memorably holed the deciding putt at the Ryder Cup two months ago, clinched a two-shot victory at the Gary Player Country Club over Charl Schwartzel on 8-under.
Despite enduring a topsy-turvy season which included just six top-ten finishes prior to collecting a beefy £780,000 first prize on Sunday, the former World No.1 is delighted with the progress he has made, particularly having undergone swing changes that help him work the ball right to left.
“I’ve won once in 2012 and it was a very good year for me because I made progress with my swing,” said the current World No.28, who picked up his first title since the WGC-HSBC Champions at the end of 2011.
“I am hitting the ball well and I’m very happy with the way I’m playing.
“In golf you need a lot more patience and it’s just a matter of sticking to your plan. I have another 20 years ahead of me, maybe even 30 if you look at Bernhard [Langer].”
Kaymer was sporting a full bag of TaylorMade clubs including the RocketBallz driver and fairway wood, TaylorMade RAC irons and Penta TP5 ball.