Together, Rudie & Marlice run Naankuse Wildlife Sanctuary and Lodge. He is best known for representing his country in both the 2003 Cricket World Cup and the 2003 Rugby Union World Cup. As a result he became the first man to compete in the final stages of world-cup competitions in cricket and rugby union in the same year.
He is the only Namibian to have taken five wickets in a One Day International, which he did against England.
In the 2003 Cricket World Cup, Australian Darren Lehmann hit van Vuuren for 28 runs in a single over. At the time, this was more runs than any other bowler had conceded in an over in a World Cup, though this was surpassed when Herschelle Gibbs hit six sixes in one Daan van Bunge over during the 2007 World Cup.