Guelph Lake Triathlon

Guelph Lake I Triathlon

Part of the Subaru Triathlon Series, this weekend at Guelph Lake Conservation Area offers multiple triathlon and duathlon formats and in 2026 includes qualifying spots for the World Championships in the Sprint Triathlon and Duathlon. Spectators pay a park entrance fee while participating athletes are included in their race entry.

• Try a Tri : 375 m swim, 9 km bike, 2.5 km run
• Sprint Triathlon : 750 m swim, 19 km bike, 5 km run
• Sprint Duathlon : 2 km run, 19 km bike, 5 km run
• Sprint Tri Relay : 750 m swim, 19 km bike, 5 km run
• Sprint Swim Bike : 750 m swim, 19 km bike
• Olympic Triathlon : 1.5 km swim, 36 km bike, 10 km run
• Olympic Duathlon : 2 km run, 36 km bike, 10 km run
• Olympic Swim Bike : 1.5 km swim, 36 km bike
• Olympic Tri Relay : same distances as the Olympic triathlon in relay format

Swims start from the beach and follow a clockwise rectangular pattern marked with large orange buoys. Water temperatures are generally comfortable and wetsuits are optional. Bike courses are out and back with rolling hills, exposed to wind on open roads, and include speed bumps on the road leading in and out of the conservation area. Run courses remain inside the park on paved roads with short rolling hills. Relay teams share a single timing chip used as the exchange baton. Race day sign ups are offered on site for a late fee and several payment methods are accepted. Visit the organization's website for the most recent information.

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