Cape Town - The Blitzboks proved too strong for Scotland in their Pool A clash at the Hong Kong Sevens on Saturday.
The Springbok Sevens side won 26-10, having led 12-0 at half-time.
The South Africans outscored the Scots by four tries to two and will contest Sunday's Cup quarter-finals.
In their final pool game later on Saturday, the Blitzboks will face Samoa (09:22 SA time).
On Friday, coach Neil Powell's charges started their campaign with a 22-7 win over Japan.
Tries: Selvyn Davids, Stedman Gans, Ryan Oosthuizen, Branco du Preez
Conversions: Davids, Justin Geduld, Du Preez
Tries: Jamie Farndale, Tom Brown