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.
November 2026
Participate in a 400m pool swim and a flat 5km run at the Halesowen Leisure Centre featuring chip timing and awards for multiple age categories.
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 400 m pool swim followed by a traffic free 5 km out and back run at Wombourne Ounsdale Leisure Centre on 06 Dec 2026.
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.
Monthly updates for United Kingdom
Get new running races (and updates) in your inbox every month.
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.
Duathlons at Sherwood Pines in December 2026 with run and off road cycle legs, chip timing, finishers' medals and mince pies.
Community duathlon in Woodford with Swim Bike Run and Sprint Duathlon options, manual timing, flat courses and on site parking.
January 2027
A New Year's Day triathlon in Edinburgh on 01 Jan 2027 featuring a 400 m swim, 11 mile bike and 3.5 mile run plus a children's duathlon for ages 8 to 15.
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.
A map and compass adventure in the Peak District on 30 January 2027 combining trail running and mountain biking with solo and team options and bike hire available.
February 2027
A club duathlon at Betteshanger Country Park on 7 February 2027 with pre-booking, small entry fees, free parking with car registration and required emergency contact details.
Map and compass adventure in the Cotswolds combining trail running and mountain biking with flexible score formats and bike hire available.
Third round of the Winter Duathlon Series at Betteshanger Country Park with pre-booking, tiered entry fees, and three recommended starting groups based on expected finish durations.
Off road duathlons plus 5km and 10km trail runs through the Forest of Dean at Speech House, with live chip timing and on site parking.
March 2027
Sprint duathlon at Brunel Quay, Neyland: 5 km run, 21 km bike and 2.5 km run, British Triathlon permitted with relay options and a 200-place cap.
Final round of the Winter Duathlon Series at Betteshanger Country Park on 14 March 2027, with three recommended start groups and pre-booking required.
Run, bike and run around Rivington in the West Pennine Moors on 14 March 2027, with two 5.6 km trail runs and a 37.2 km road cycle loop.
Duathlon in Grasmere combining runs on village and lakeside trails with cycling legs to Elterwater or Hawkshead and Coniston, organised by Wild Deer Events.
Duathlon at Druridge Bay Country Park with sprint and standard run bike run courses along lakeside footpaths and flat coastal roads.