Eton Dorney Family Triathlon
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About the race
Eton Dorney Family Triathlon takes place at Dorney Lake, Eton Dorney (SL4 6FJ) on 25th July 2027. The event features open water swimming in the lake, a flat traffic free closed road bike course and a spectator friendly out and back run course. The swim uses looped and single lap formats in an anti clockwise direction with separate buoying for sprint and super sprint waves. The bike course is a 4.88 km anti clockwise loop with super sprint athletes completing 2 laps and sprint athletes completing 4 laps. The event operates as a non drafting race with static marshals reporting infringements.
The programme includes multiple race categories for adults and juniors: adult sprint and super sprint, youth (ages 15-16), Tristar divisions for ages 8 to 14, and a non competitive Family Fun Triathlon. Key example distances: Sprint swim 750m, bike 19.5km, run 5km; Super Sprint swim 400m, bike 9.75km, run 2.5km. Tristar and youth distances are specified per age group with single lap swims and short closed road bike laps. Family Fun offers a fixed 100m swim then open access to the 1.5km bike and 600m run courses for a limited time; it is open to children aged 7 and above who are confident in the water.
Awards are posted after the event and placings are announced online. Age is determined as of 31st December in the year of the race. Entries and race pass requirements apply for competitive categories. Visit the organization's website for the most recent information.
