South Africa’s nightmare start to the Women’s World Cup continued when they were smashed 74-8 by England.
This follows the Lady Boks’ 68-12 defeat to the Australians in the opening round.
The Poms scored 12 tries, while Wendy Khumalo scored the only five-pointer for the South Africans.
Meanwhile, New Zealand made it two from two with a 50-0 victory over Samoa in Edmonton, Jed Rowlands’ side running in eight tries in another comprehensive display.
Marsh, who had scored a spectacular solo touchdown in the first-up 66-7 victory over Canada, went top equal on the tournament try-scoring charts with three more against the Samoans.
In the other second-round action the United States picked up their first win with a 24-11 victory over Ireland, while Scotland beat Kazakhstan 30-17.