The Fix Addiction Summer 5k 10k and Half Marathon 2026

FixAddiction Triathlon takes place at Dorney Lake in Windsor, the Olympic rowing venue west of London. Participants can select a supersprint (400m swim, 20k bike, 5k run) or a sprint (750m swim, 20k bike, 5k run). The course involves swimming in the lake, followed by cycling and running on closed, flat roads within the venue. The 20k bike route consists of four laps, and the 5k run is an out-and-back course completed twice. This format is suitable for those who prefer a simple, easy-to-pace course. The event welcomes both novice and experienced triathletes, with support from British Triathlon Federation registration, chip timing, immediate results, winner trophies, finisher medals, and refreshments. The course is accessible for wheelchairs, race packs are collected on race day, and free parking is available near the clubhouse.