Johannebsurg - South Africa charged to the top of Group C in the sevens rugby tournament at the World Student Games in Kazan, Russia, on Sunday.
The SA team romped past neighbours Namibia with a 41-12 victory in their opening match and thumped Latvia 41-7 in their second group encounter.
Jarryd Buys scored three tries in the two games, while Stefan de Villiers and Bradley Moolman also put their names on the scorecard more than once, with both players adding braces.
The SA men play Japan in their third and final group match on Monday.
In the swimming pool, Giulio Zorzi cruised into the final of the men's 50m breaststroke.
Zorzi was the fastest of the qualifiers, and second fastest of the semi-finalists, touching the wall in 27.67 seconds to book his place in Monday's final.
Richard Ellis reached the semi-finals of the men's 200m backstroke but was eliminated in the penultimate round.
Elsewhere, Stuart Maclaren and Alasdair Glass finished eighth in the men's K2 1 000m sprint canoe final in 3:39.931.
The Polish duo of Pawel Szandrach and Mariusz Kujawski won gold in 3:28.473.
Maclaren and Glass were knocked out in the semi-finals of the men's K2 200m event.
Calven Clack was third in his semi-final of the men's K1 200m discipline, crossing the line in 38.922 to qualify for Monday's final.
Meanwhile, Grace Legote was lying 24th in the standings after two disciplines - the hoop and ball - in the women's individual all-round gymnastics final.