London
Triathlon Calendar near London 2026-2027
Monthly updates for London
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near London for 2026-2027! We've gathered 23 exciting races in the area. Check out our detailed list below to find your next local race.
June 2027
River Thames swim, country roads cycle and a finish past Windsor Castle with sprint and Olympic distances and relay options.
July 2027
Triathlon at Higginson Park, Marlow on 11 July 2027 offering Middle, Olympic and Sprint distances with a Thames swim and chip timed results.
August 2027
A two day triathlon festival in London on 21 and 22 August 2027 featuring a 100 km T100 race plus Olympic, Sprint and Super Sprint formats and relay options.
Monthly updates for London
Get new running races (and updates) in your inbox every month.