German Martin Kaymer has won the Nedbank Gold Challenge at Sun City by two shots after matching Charl Schwartzel's fourth-round 69.

Kaymer improved from his first-round 72 to hit three consistent rounds of 69, 70 and 69 to finish top of the leaderboard with eight-under.

There were nervous moments in the final round as Kaymer went into the rough on 14, but recovered superbly to birdie that hole.

Bill Haas, Louis Oosthuizen and Lee Westwood rounded off the top five with -3, -2 and -1 respectively, and were the only other golfers to finish under-par.