East of England
Triathlon Calendar East of England 2026-2027
Monthly updates for East of England
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Explore the best triathlons in East of England for 2026-2027! Our updated list features 27 exciting races across the region. Find your next race in East of England below and join the running community at these great events!
August 2026
A long distance triathlon festival on 8 August 2026 at Riverside Park, St Neots, offering full, half and aquabike options with on site camping and a festival hub.
Triathlon at Riverside Park St Neots on 8 August 2026 offering sprint, standard, aquabike and relay formats as part of the First To Full festival.
A multisport festival at Riverside Park offering sprint to full triathlon options, relay racing, a 12 hour endurance run and family-friendly entertainment.
Bedford Triathlon in Bedford offers Olympic and Sprint categories, a local TT-style bike route with a Hill Foot climb, and a riverside two-lap run.
September 2026
A team relay triathlon in Aldeburgh on 06 Sep 2026 featuring a sea swim, a 22 km bike course and a 5 km off road run with 100 places available.
A community aquathlon at Letchworth Outdoor Pool combining a 400 m pool swim and a 5 km run with junior distances and relay options. Chip timed age group competition, inclusive entries and a 350 participant limit.
Pool-based charity triathlon at Blackwater Leisure Centre featuring sprint, novice, relay and youth races around Promenade Park.
Nettleden Duathlon at Nettleden Lodge near Berkhamsted combines a 6 km run, a 24 km cycle and another 6 km run. It accepts individual entrants and relay teams, includes free kids races, and raises funds for charities.
Triathlon at Trifarm in the Chelmer Valley with Sprint and Super Sprint options, a lake swim, 18 km bike over North Hill and multi-lap runs.
Riverside triathlon in St Neots on 20 September 2026 offering sprint to middle distances, open water swim, camping, wetsuit hire and relay options.
Pool-based super sprint triathlon in Bungay with a 400m swim, 20km bike and 3.2km run, limited to 170 places and open to ages 15 to 99.
ATW Grafham Triathlon at Grafham Water features sprint and standard formats with open water swim loops, a flat out and back bike and a 5 km lap run around the dam. Aquabike and relay options plus wetsuit hire and overnight options are available.
Timed solo swimrun at Grafham Water with repeated 2.5 km laps, two swims and shrinking time limits until the last person remains.
October 2026
A super sprint triathlon at Reef Leisure Centre in Sheringham with a 300 m pool swim, 17 km bike and 3 km run plus medals and age category trophies.
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.
March 2027
A spring duathlon in Ely with two 4 km runs and a 26 km bike across a flat fenland course and a former WW2 airfield.
May 2027
Sprint triathlon at Dereham Leisure Centre on 02 May 2027 featuring a 300 m pool swim, 21 km bike and 5 km run alongside a Health and Wellbeing Fair.
Multi-discipline event at Hanningfield Reservoir near Chelmsford featuring sprint and standard triathlons, aquabikes and open water swim with live chip timing and free parking.
Four person team relay triathlon at Box End Lakes featuring a 350 m swim, 7.7 km bike and 1 km run per athlete. Teams can enter in Olympic mixed, female or open categories and single entries may be allocated to teams on race day.
A 100 km triathlon at Box End Lakes on 23 May 2027 with a 2.2 km swim, 81 km non draft bike and a 20 km off road run. Aquabike and team relay options are available, with camping and free parking on site.