In Pool A, favourites South Africa, who have won the last three Sevens Series events, including last week's season-opener in Dubai, moved top of the standings with three wins from three, including a 21-7 victory over Britain to close out the day.

Britain finished the day second in Pool A.

In Pool B, Australia narrowly beat the United States 22-19 to secure the top spot entering tomorrow's knockout stage.

A 21-14 win over Kenya and 24-17 win over Canada was enough for Australia to end the day with a 100 per cent record.

Argentina and France topped Pool C on seven points - two wins and a defeat each - while the shock was two-time Olympic champions Fiji, who finished bottom of the group on five points.

Argentina face Britain in the quarter-finals tomorrow, South Africa will play Kenya, France are up against the US and Ireland await Australia.

It was a better day for Fiji in the women's event as they top Pool B going into tomorrow's action, with three wins from three matches. 

France currently sit second in Pool B and they will face Fiji tomorrow before the knockout stage begins later in the day.

Australia top Pool A with three wins from three, with Russia in second, also with a 100 per cent record.