The Blitzbokke hammered Wales 26-0 to make sure that a Southern hemisphere quartet got through to Cup semis at USA Sevens in Las Vegas.
An entertaining second day of action at the Sam Boyd Stadium in Las Vegas saw pool-toppers New Zealand, Fiji, Samoa and South Africa going through to the USA Sevens Cup semi-finals on Sunday.
Hosts USA reached the quarter-finals in dramatic fashion with a stunning 22-7 pool win against Spain, but were edged out by Fiji, 21-19.
The Fijians will face Series leaders New Zealand in the first semi-final after the Kiwis beat Canada 17-0.
In the other side of the draw, defending champions Samoa won through against a brave Scottish display, 12-5, to face South Africa in the second semi, the Blitzbokke producing another impressive performance to beat Wales 26-0.
