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 253 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.
A club organised duathlon in Bishampton on 11 October 2026 with standard and short run bike run distances and 10% of entry fees donated to St Richard's Hospice.
Experience an end of season sprint triathlon in Porthcawl featuring a harbour swim, a multi lap town cycle, and a flat coastal run along the Bristol Channel.
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 coastal sprint triathlon in Minehead featuring a 750 m open water swim, a 20 km out and back bike route towards Porlock, and a 5 km seafront and trail run, with individual and mixed relay entries and optional medal and t shirt packs.
Traffic free duathlon at Croft Circuit with multiple run bike run distances, British Triathlon registration required and non drafting rules apply.
Duathlon at Airport Inn, Wilmslow, with Sprint and Super Sprint options, out-and-back runs through runway tunnels and bike laps on quiet country lanes.
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.
Pool and run aquathlon at the London Aquatics Centre in October 2026, featuring a 400m swim and a 5km run around South Park.
New off road trail runs and duathlons at Salcey Forest with 5 km and 10 km runs plus sprint and standard duathlon formats and relay options.
A 432 m pool swim followed by a 5 km run at Hampton Pool and Bushy Park on 25 October 2026, age 16+, entry £45 includes chip timing and a finisher medal.
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.
Duathlon relay and solo races at Cyclopark Gravesend on a traffic free tarmac circuit, with shortened relay distances and limited team and solo entries.
Duathlon at Dorney Lake offering Super Sprint, Sprint and Standard distances on a flat, chip timed course with marked run laps and balcony spectator views.
Short off-road adventure races at Alice Holt Forest combining cycling and running, including an 8 km Wolf Cub Challenge suitable for all ages.
A winter adventure race in Wiltshire combining trail running and mountain biking with map and compass navigation and flexible time-limited courses.