"The processes to change the face of sport over the past 20 years have been largely ineffective," said Willie Basson, a member of the sport ministry's panel that oversees racial transformation.
The report marking two decades of democracy found that the number of blacks in rugby and cricket teams still had to increase threefold to reach the target of 50 per cent representation.
A development plan for 2030 has the goal of making teams more representative of national demographics -- over 80 per cent of South Africans are black, while under 10 per cent are white.
South Africa, which hosted the Cricket World Cup in 2003, is currently ranked the world's top test side.
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In rugby, South Africa has won two World Cups, including a hugely symbolic triumph on home soil in 1995.
South Africa's white captain Francois Pienaar receiving the trophy from anti-apartheid hero Nelson Mandela was a powerful image of the promise of racial reconciliation.
But a top official of the sport and recreation ministry, Alec Moemi, said today that discrimination was still at work.
Football has the reverse problem, with white players virtually absent from major teams, the sport ministry noted, with no sign that hosting the 2010 World Cup helped popularise the sport among non-blacks.