The Springbok Sevens side remained unbeaten at the Dubai Sevens after a hard-fought win over Ireland on Friday.
MATCH CENTRE | Dubai Sevens
The Blitzboks won 21-12, after leading 7-0 at half-time.
The South Africans ran in three tries but were given a good run for their money by the Irish, who fought hard for two second half tries.
Earlier on Friday, the Blitzboks thumped Japan 48-0 in their opening match of the weekend.
In their final Pool A match on Friday, the South Africans will face Great Britain at 18:33 (SA time).
The Blitzboks won last weekend's first Dubai Sevens event after a 42-7 win over the USA in the Cup final and are the top seeds this weekend.
Tries: Shilton van Wyk, Selvyn Davids, Impi Visser
Conversions: Branco du Preez, Ronald Brown (2)
Tries: Terry Kennedy, Aaron O'SullivanConversion: Mark Roche