All Nations Triathlon

About this event

Held at Dorney Lake's Olympic venue near Windsor, this spring triathlon brings an international flavour to the flatlands of Berkshire. The course covers a 400m lake swim, 20km closed-road bike, and 5km run — fast and straightforward, perfect for those chasing personal bests on smooth terrain. What makes it memorable is the atmosphere: participants race under their national flags, adding a spirited, community feel to the day. The lake's calm waters and traffic-free cycling make for a clean, focused race, while the venue's legacy as an Olympic site adds a touch of prestige. A solid choice for triathletes seeking a well-organised, festive early-season challenge on reliable, flat ground.

Distances