What membership do I need for masters competition, records and rankings?

Athletics Canada says sanctioned Masters competition, Canadian Masters records, rankings and national championships require a Competitive Masters membership through your provincial or territorial athletics association.

To register, go to AthleticsReg, select your province or territory, and choose the "Competitive - Masters" category. National Rankings and World Rankings (mastersrankings.com) are linked from the Masters page.

Source: https://athletics.ca/masters/