The 2018 World Junior B Curling Championships was held from January 3 to 10 at the Kisakallio Sports Institute in Lohja, Finland.

The top three men’s and women’s teams at the World Junior B Curling Championships would qualify for the 2018 World Junior Curling Championships.

[1] Final round-robin standings Tuesday, January 9, 14:00 Tuesday, January 9, 19:00 Wednesday, January 10, 9:00 Wednesday, January 10, 14:00 Wednesday, January 10, 14:00 Final round-robin standings Tuesday, January 9, 9:00 Tuesday, January 9, 14:00 Wednesday, January 10, 9:00 Wednesday, January 10, 14:00 Wednesday, January 10, 14:00