The victory also underlined their undefeated status at the Sevens Stadium, where the South Africans won all five their matches this weekend.

Victory in their semi-final over Poland earlier on Sunday also meant the Bok Women qualified for the HSBC SVNS 2 series, which will be played in Nairobi (14-15 February), Montevideo (21-22 March) and Sao Paulo (28-29 March).

South Africa started slow against Argentina. They kept the South Americans at bay with strong early defence but did not quite show the same prowess on attack, where they failed to finish some of the opportunities created. In fact, it was Argentina who scored the only try in the first half to lead 5-0 at the break.

The second half was another arm wrestle, but the South African attack was starting to cause their opponents problems, with a try by Zintle Mpupha three minutes from time levelling the scores at 5-5.

Patience Mokone then scored with a minute to go and the conversion by Nadine Roos sealed the deal for South Africa, although they still had to fight off a last desperate Argentina attack before the final whistle.

They also started slowly against Poland in the semi-final earlier in the day. An early try by Roos, when she broke away from strong scrum by her team, had them ahead, but some slow reactions at a ruck resulted in Poland grabbing the incentive back, with Martyna Wardaszka scoring.

Poland had some momentum now, but good defence and a lovely try by Tshiremba returned the momentum to the Bok Women, who held a 12-5 lead at the break.

The second half belonged to South Africa. Tshiremba, Ayanda Malinga and Patience Mokone all scored when space was created on the outside, while Mpupha added the final try down route one following a quick penalty.

Scorers:

Final: South Africa 12 (0), Argentina 5 (5)
SA – Tries: Zintle Mpupha, Patience Mokone. Conversion: Nadine Roos.
Argentina – Try: Maria Taladrid.

Semi-final: South Africa 36 (12), Poland 5 (5)
SA – Tries: Nadine Roos, Maria Tshiremba (2), Ayanda Malinga, Patience Mokone, Zintle Mpupha. Conversions: Roos (3).
Poland – Try:  Martyna Wardaszka.