Sunbury-on-Thames
Triathlon Calendar near Sunbury-on-Thames 2026-2027
Monthly updates for Sunbury-on-Thames
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Sunbury-on-Thames for 2026-2027! We've gathered 22 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
Triathlon at Dorney Lake supporting Macmillan Cancer Support with Super Sprint, Sprint, Standard, aquabike and relay options at the Olympic venue; event sold out.
Triathlon at Dorney Lake with sprint, standard, super sprint, aquabike and relay options on a flat, chip timed Olympic venue.
Hever Castle Multisport Weekend offers triathlon, duathlon, aquabike, swim and run events across a range of distances in the historic Kent castle grounds.
Aquathlon at London Fields Lido combining a 400 m pool swim with a 5 km loop around London Fields Common, listed in the Senior London League.
Sprint and Super Sprint triathlons at Hampton Pool feature pool swims in a 26°C lido, road cycling and runs beside Hampton Court with safety measures for open roads.
Monthly updates for Sunbury-on-Thames
Get new running races (and updates) in your inbox every month.
October 2026
Race at a historic Olympic venue with this flat and fast road duathlon. Choose from Super Sprint Standard or Relay distances and enjoy a chip timed course through the scenic grounds of Dorney Lake.
Duathlon and triathlon races at Dorney Lake with Super Sprint, Sprint and Standard distances on a flat, draft-illegal course; British Triathlon membership or a Race Pass is required.
Triathlon at Dorney Lake on 3 October 2026 with Super Sprint, Sprint and Standard distances, plus aquabike and relays; calm open water, flat road course, chip-timed results, marshals and an event village with race photos.
Aquathlon at the London Aquatics Centre: a 400 m pool swim followed by a measured 5 km run in Queen Elizabeth Olympic Park, open to ages 15 and over.
November 2026
A chip timed duathlon at Dorney Lake with Super Sprint, Sprint and Standard distances on flat road courses. Relay entries for two or three athletes and entry includes a themed medal and free race photos.
Race Super Sprint, Sprint or Standard duathlon at Dorney Lake on a flat, chip timed course with marked laps, helpers and spectator viewing.
December 2026
Map and compass adventure in the Surrey Hills on 5 December 2026, with run and bike options for solo entrants or teams and bike hire available.
A chip-timed duathlon at Dorney Lake with Super Sprint, Sprint and Standard formats, relay options, and a flat road course around an Olympic venue. The event includes a themed medal, free photos and an event village with food and partner goodies.
Super Sprint, Sprint or Standard distances at flat, scenic Dorney Lake with marked courses, helper stations, spectator viewing and a British Triathlon race licence requirement.
January 2027
Trail running and mountain biking in the Chilterns on 9 January 2027 with score-format navigation, solo or team entries and options from 2 hour to 5 hour events.
May 2027
Club organised event in Sevenoaks with a 400m pool swim, 25 km undulating bike through Kent countryside, and a run through Knole Park past Knole House.
Marlow Triathlon on 30 May 2027 at Higginson Park features open water River Thames swims, cycling through the Chilterns and riverside runs, with medals and chip timing.
June 2027
Pool based triathlon in Henley on Thames with an indoor pool swim, rural bike laps and a grass run around Gillotts School, with chip timing and finisher medals.
Club organised triathlon in Swanley on 13 June 2027 offering sprint, standard and aqua bike distances, BTF sanctioned and in its 35th year.
River Thames swim, country roads cycle and a finish past Windsor Castle with sprint and Olympic distances and relay options.