Stonetown Triathlon
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Stonetown Triathlon - St. Marys
The Stonetown Triathlon takes place on Sunday, July 5, 2026 at St. Marys Quarry, 425 Water St S, St. Marys, ON N4X 1B6. The event includes an open water swim in one of Canada’s oldest quarries. Participants must be 2025 Triathlon Ontario members or purchase a one day Triathlon Ontario membership. Entry fees range from $65 to $85.
The event offers multiple age categories and draft and non draft formats. Distances by category:
- Draft Legal Junior Cup 16-19: Swim 600 m / Bike 16 km / Run 5 km
- Draft Legal Youth Cup 14-15: Swim 400 m / Bike 12 km / Run 3.75 km
- Non-Draft 14-15: Swim 300 m / Bike 8 km / Run 2.5 km
- Non-Draft Youth Cup 12-13: Swim 300 m / Bike 8 km / Run 2.5 km
- Non-Draft 12-13: Swim 300 m / Bike 8 km / Run 2.5 km
- Non-Draft 10-11: Swim 100 m / Bike 4 km / Run 1.25 km
- Non-Draft 8-9: Swim 100 m / Bike 4 km / Run 1.25 km
- Adult Try A Triathlon: Swim 300 m / Bike 8 km / Run 2.5 km
A tentative schedule organizes wave starts by category and may change with registration numbers. Volunteers are requested and high school volunteers can receive volunteer hours. Visit the organization's website for the most recent information.
