Triathlon Calendar United Kingdom 2026-2027
Monthly updates for United Kingdom
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in United Kingdom for 2026-2027! Our updated list features 227 exciting races across the country. Find your next race in United Kingdom below and join the running community at these great events! Search for a location or view races near London, Birmingham, Glasgow, Liverpool, Scotland or Wales.
October 2026
Sprint duathlon on 11 October 2026 at Carlisle Lake District Airport featuring a 5 km run, 19.3 km bike and 2.5 km run. Traffic free airport runs, chip timing, prizes and a finisher medal.
Join a welcoming duathlon in the Worcestershire Lenches featuring flat runs and scenic cycling on quiet rural lanes for all ability levels.
Sprint triathlon and relay at Porthcawl Harbour with a 750 m swim, four lap bike and two lap coastal run; British Triathlon membership or race pass required.
Run Cycle Run duathlon in St Andrews on 11 Oct 2026 with sprint and novice distances, open to competitors aged 15 and over and held as a non drafting race.
Experience an autumnal multi-terrain duathlon in Fareham featuring woodland trail runs and hilly road cycling loops for all abilities.
Monthly updates for United Kingdom
Get new running races (and updates) in your inbox every month.
University of Dundee aquathlon on 17 Oct 2026 with a 750 m swim and 5.1 km run, age categories, prizes and a £35 entry fee.
A sprint triathlon in Minehead combining a 750m sea swim, 20km bike and 5km coastal run with marshals, chip timing and water safety.
Traffic-free run, bike, run duathlon at Croft Circuit in North Yorkshire with Super Sprint, Sprint and Standard distances and British Triathlon registration.
A welcoming duathlon near Manchester Airport with Sprint and Super Sprint formats on flat runs and quiet country lanes for cycling.
A 25 hours team adventure on the Long Mynd combining running, mountain biking, kayaking and special stages with route choices covering roughly 100 km to 250 km.
Duathlon at Grafham Water on 25 October 2026 with Standard and Sprint distances, a 2.5 km dam lap and an out and back bike route to St Neots. Races are draft illegal and supervised by British Triathlon motor officials.
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.
Multisport and trail races at Salcey Forest featuring sprint and standard duathlons plus 5km and 10km off-road trail runs on maintained forest trails.
November 2026
A duathlon at Roadford Lake that includes a European Championship Standard Distance qualifier for the British Triathlon GB Age-Group Team. The event features chip timing, medals, prizes, an onsite cafe and camping.
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.
A winter adventure race in Wiltshire combining trail running and mountain biking with map and compass navigation and flexible time-limited courses.
Duathlon at Betteshanger Country Park on 15 November with pre-booking required, £6/£8 entry, free parking with car registration, and three recommended start groups by expected finish time.
Experience a winter duathlon at Kielder Castle featuring trail runs and red graded mountain bike tracks through the Northumbrian landscape as a solo athlete or in a pair.