Stonetown Triathlon

The Stonetown Triathlon, held in St. Marys, Ontario, takes place at the historic St. Marys Quarry, one of Canada's oldest quarries, offering a unique swimming experience.

Scheduled for July 6, 2025, the event features multiple race categories primarily for youth and junior athletes aged 8 to 19. Distances vary by age group, with swim segments ranging from 50m to 500m, bike courses from 4km to 16km, and runs from 750m to 5km. The triathlon includes both draft-legal and non-draft-legal races, requiring appropriate certification for some categories.

The event fosters a supportive atmosphere and encourages community involvement, including volunteer opportunities. Visit the organization's website for the most recent information.