Dorney Lake Triathlon

About the race

The Dorney Lake Evening Triathlon, held on July 2, 2025, takes place at the Olympic venue of Dorney Lake in Windsor, UK. Participants can choose from Super Sprint, Sprint, or Aquabike (swim-bike) distances, featuring a 400m or 750m swim in the purpose-built lake, flat and fast 10km or 20km bike courses, and 2.5km or 5km runs on flat terrain. The event offers chip-timed results, official photos, and unique themed medals.

The flat course and clear distance markings make it ideal for personal bests, with plenty of support to encourage athletes throughout the race. Visit the organization's website for the most recent information.

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