Cape Town - The Blitzboks have topped Pool C at the Vancouver Sevens after beating Argentina 27-0 in their final match of the day on Saturday.
Unconverted tries by Kwagga Smith and Justin Geduld gave the Blitzboks a 10-0 half-time lead.
They followed that up in the second half with further scores for Smith, Cecil Afrika and Seabelo Senatla, his fourth of the tournament.
The Blitzboks now face Wales in a quarter-final clash.
Kick-off is at 20.30 (SA Time).