Triathlon Calendar United Kingdom 2026-2027
Monthly updates for United Kingdom
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Explore the best triathlons in United Kingdom for 2026-2027! Our updated list features 308 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.
July 2027
Closed road 5K and 10K races along the English Riviera seafront, part of a multisport festival with official timing and coastal views.
Midweek Dorney Triathlon at Dorney Lake offers sprint, super sprint, aquabike and relay options on a flat Olympic course; the event is draft illegal.
Triathlon and duathlon at Fish Meadow, Upton upon Severn on 10 July 2027 with sprint and standard distances, junior races, camping and on site food vendors.
Weekend event at Roadford Lake combining SUP, road cycling and lakeside trail running with chip timing, SUP workshops, and on site camping from £135.
Two-day triathlon and multisport weekend at Cockshott Point, Windermere with novice, sprint and standard swim, bike and run events on 10 and 11 July 2027.
Monthly updates for United Kingdom
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Two days of sprint, Olympic, aquabike, relays, open water swims and junior triathlons at Ripon Racecourse set beside the Yorkshire Dales.
A two-day SUPBIKERUN at Roadford Lake combining paddle boarding, mountain biking and a lakeside trail run with chip-timed results and on-site camping.
Multidistance triathlon in Southend on 11 July 2027 with swim, bike and run options plus aquabike, relay and duathlon; chip timing and water safety provided.
A multi-discipline event in Winchester with a 20 km bike, 2 km kayak and 5 km run, open to individuals or relay teams with standard and early bird fees.
A multi-distance triathlon festival on the South Downs coast with closed-road bike courses, seaside swims, youth races and relay and single-discipline options.
IRONMAN 70.3 Swansea in Swansea Bay features a swim from Prince of Wales Dock, a flat coastal bike and a run through the city waterfront; relay entries available.
Marlow Triathlon at Higginson Park on 11 July 2027 offers Middle Distance, Olympic and Sprint races with timed results, race village facilities and charity support for Macmillan.
Ocean triathlon at Putsborough Sands, North Devon on 11 July 2027 offering Olympic and sprint distances plus a coastal trail run with profits donated to charity.
One on the River Marlow stages triathlon, duathlon, aquabike, aquathlon and open-water swims at Higginson Park beside the River Thames with chip timing and marked courses.
A two day multisport weekend at Belvoir Castle in Leicestershire offering triathlon, duathlon, aquabike, aquathlon, swim and run races for juniors and adults in July 2027.
A coastal swimrun at Clevedon Marine Lake offering full and half courses with alternating run and swim sections, optional medals and rules for junior entrants.
Triathlon at Riverside Park St Neots offering Sprint and Standard distances plus aquabike, relay options and on site camping.
Compact sprint triathlon in Dorchester with a 300 m pool swim, about 21 km scenic bike including Hardy's Monument, and a flat 5 km run over two laps.
Teams of three each complete a 750m swim, 23km bike and 5km run in relay format at Box End Park with categories and prizes for top teams.
Sprint triathlon at The Sands Centre in Carlisle on 18 July 2027 with a 500 m pool swim, 20.4 km bike and 4.9 km run, chip timing and finishers medals.