Skip Jennifer Jones and Team Canada won 9-2 in their first match of the Olympic women's curling tournament on Monday in Sochi after China conceded in the seventh end.
Jones, from Winnipeg, built a 3-0 advantage after three ends by scoring two in the second and one in the third.
China's skip Bingyu Wang cut that lead to 3-1 in the fourth before Canada added another three in the fifth for a 6-1 lead.
The Chinese scored a point in the sixth end, before Canada added three more points in the seventh.
Up next for the Canadians in the round-robin is a draw against Sweden, which takes place at midnight ET on Tuesday.