Dorney Lake Triathlon

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 course is well-marked with distance flags and supported by helpers, creating an encouraging atmosphere ideal for personal bests. This evening triathlon combines competitive racing with a scenic, flat course. Visit the organization's website for the most recent information.