[1] The event had its origins with the Ontario Junior Masters Curling Championship, which began in 1968 and, at first, mostly consisted of teams in the Greater Toronto Area.

[2] Eventually the event was renamed to the International Junior Masters Bonspiel and began attracting teams from other countries.

[3] It became the World Junior Curling Championship in 1974, before being officially sanctioned in 1975.

The tournament was held every year at the East York Curling Club before being sanctioned.

In the Europe Zone, teams participated in the European Junior Curling Challenge, in which the winner advances to the World Championships.