The 27-year-old sealed victory with a par on the final hole, adding to his breakthrough win in the Andalucia Open on the European Tour earlier this year.

CNN: Oosthuizen seals runaway victory in British Open

Oosthuizen, a former farmboy with a gap-tooth smile, learned his trade at the academy run by South African star Ernie Els, winning his first title at the Andalucia Open on the European Tour this season.

CNN: Oosthuizen leads way at British Open as winds cause havoc

Then in March he finally won his first European Tour event at the Open de Andalucia in Spain beating England's Richard Finch and Peter Whiteford of Scotland, who were tied second by three strokes.

CNN: STORY HIGHLIGHTS