Brentford
Triathlon Calendar near Brentford 2026-2027
Monthly updates for Brentford
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Brentford for 2026-2027! We've gathered 45 exciting races in the area. Check out our detailed list below to find your next local race.
August 2027
Triathlon at Dorney Lake offering Sprint, Standard, Super Sprint, aquabike and relay options on a flat chip timed course; British Triathlon membership required.
September 2027
One on the Lake Dorney on 5 September 2027 offers triathlon, duathlon, aquabike, aquathlon, open water swims and 5K, 10K and 15K runs with pro timing and medals.
Multi-distance triathlon, aquathlon and aquabike at the H2O Swim Centre lake in Reading on 12 September 2027, featuring open water swims and single loop road cycle routes.
A multisport weekend at Hever Castle, Kent with triathlon, duathlon, aquabike, aquathlon, swim and run races, junior events and a festival village.
October 2027
A combined 400 m pool swim and 5 km run at the London Aquatics Centre and Queen Elizabeth Olympic Park on 23 October 2027.
Monthly updates for Brentford
Get new running races (and updates) in your inbox every month.