Slough
Triathlon Calendar near Slough 2026-2027
Monthly updates for Slough
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Slough for 2026-2027! We've gathered 28 exciting races in the area. Check out our detailed list below to find your next local race.
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.
Multisport event at Higginson Park, Marlow combining triathlon, duathlon, aquabike, aquathlon and open water swims in the River Thames.
August 2027
A summer multisport event in Henley on Thames offering triathlon, duathlon, aquabike, aquathlon and open water swims with chip timing and a finisher medal.
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 Slough
Get new running races (and updates) in your inbox every month.
September 2027
Multisport racing at Dorney Lake on 5 September 2027 with triathlon, duathlon, aquabike, aquathlon, open water swims and 5K, 10K and 15K runs.
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.