Cape Town - The Blitzboks will face the USA in the quarter-final of the Hong Kong Sevens after they beat Scotland 31-0 in their final Pool B match.
A first-half double from Ruhan Nel gave South Africa a 14-0 lead at half-time.
The Scots were not helped after Nick McLennan spent time in the bin for foul play.
In the second-half, the Blitzboks further extended their lead through flyer Seabelo Senatla - his 46th try of the season - Siviwe Soyizwapi and Stephan Dippenaar.
The Blitzboks quarter-final against the USA kicks-off on Sunday morning at 05:20 (SA time).