JAPAN are the only unbeaten team of the 20 competing in the World Mixed Doubles Curling Championship in Gangneung, South Korea, after 12 sessions. 

After day four of the round robin, Canada head group A with five wins in six, while Japan top B with their 100 per cent record.

Of the home nations, Scotland’s team of Jennifer Dodds and Bruce Mouatt stand third-equal with Australia in Canada’s group with four wins, while England’s father-and-daughter pairing Lina and Michael Opel trail in group B with six losses.