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.
June 2027
Ocean swim, rolling bike and multi-lap run in Weymouth on 6 June 2027 with Sprint and Classic distances, chip timing and medals for finishers.
A triathlon in Bolton with a lake swim at Pennington Flash, a rolling bike through local villages, and a run that finishes in Bolton Town Centre by Queen's Park.
ATW Grafman is a middle distance triathlon at Grafham Water with a 1.9 km swim, 90 km bike and 21 km run plus aquabike and relay options.
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.
Sprint triathlon and junior aquathlon at Dover Leisure Centre on 6 June 2027, with a 400 m pool swim, 14 km bike and 5 km run plus age-group junior races.
Monthly updates for United Kingdom
Get new running races (and updates) in your inbox every month.
Triathlon at Mount Edgcumbe on 6 June 2027 with Middle, Standard, Sprint and swim races, camping, ferry access and timed results.
Two days of junior and adult multisport races at Druridge Bay with open-water swims, trail runs and sprint and standard triathlon races including a 2027 European qualifier.
A coastal swimrun at Studland Bay combining open water swims and coastal trail running across three course options, for solo entrants or pairs.
A middle distance triathlon at Parc Bryn Bach featuring a lake swim, a 60 mile bike through the Brecon moors and a three-lap 13.1 mile run; an aquabike option is available.
Experience a one day multi activity adventure in the Lake District featuring a mountain trek, forest mountain biking, and kayaking on Coniston Water.
Celtman on June 12 2027 in Torridon, Scotland features a cold 3.4 km swim, 200 km bike with 2200 m climb, and a 42 km mountain run over two Munros.
Multi-distance triathlon and duathlon in Llanberis with a lake swim beneath Yr Wyddfa, mountain cycling on the Llanberis Pass and trail finishes through the Dinorwig quarries.
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.
Norwich Triathlon in Norwich offers sprint, standard, relay and First Triathlon races; the 2027 event is scheduled for June 13 and entries will open soon.
Abersoch Triathlon in North Wales features Olympic and Sprint courses with a sea swim, bike laps, a mixed beach trail road run and a beach finish.
Open-water triathlon at The Mere, Ellesmere on 19 June 2027 with Olympic, Sprint and Super Sprint distances plus relay options.
Experience an iconic triathlon weekend in the Lake District with full and half distance races featuring a Derwentwater swim and a scenic finish in Keswick.
Sprint triathlon and duathlon at Rother Valley Country Park on 20 June 2027 with traffic free, flat routes, live chip timing and a finisher medal.