East of England
Triathlon Calendar East of England 2026-2027
Monthly updates for East of England
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in East of England for 2026-2027! Our updated list features 24 exciting races across the region. Find your next race in East of England below and join the running community at these great events!
October 2026
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.
Open-water triathlon at Riverside Park, St Neots offering Super Sprint, Sprint, Standard, Aquabike and relay on a non-drafting course.
Sprint triathlon at Hatfield Sports Village with a 400 m pool swim, 20 km bike and 5 km run, including the Herts Club Sprint Championships and non-draft rules.
Monthly updates for East of England
Get new running races (and updates) in your inbox every month.
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.
Team relay triathlon at Box End Lakes with three team categories, a 350 m swim, 7.7 km bike and 1 km run; single entries can be assigned to teams.
A Metric Centurion 100 km triathlon at Box End Lakes on 23 May 2027 featuring a 2.2 km swim, 81 km bike and 20 km offroad run with aquabike and relay options.
Triathlon at Box End Lakes on 23 May 2027 offering Sprint, Standard and Centurion distances. Options include aquabike, two to three person relays, non-draft multi-lap courses and on-site camping.
Sprint and Super Sprint triathlons at Trifarm lake in the Chelmer Valley with open water swims, an 18 km hilly bike including North Hill, and lap-based runs.
June 2027
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.
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.
July 2027
A multisport weekend at Holkham Hall with a middle distance triathlon, aquabike, gravel sprint, 10k and youth races plus on site camping.
Five-distance triathlon at Hitchin Outdoor Pool and Butts Close, from children's Nano races to the Olympic distance, with timing, t-shirt and finisher medal included.
Multi-distance triathlon at Promenade Park Maldon featuring a Middle Distance Odyssey plus standard and sprint races, with Aquabike and relay options and tidal river swim.
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.
Open-water triathlon at Riverside Park St Neots on 17 July 2027 with Sprint and Standard distances plus aquabike and relay options.
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.
Multi-distance triathlon in Felixstowe on 18 July 2027 featuring pool and sea swims, a Suffolk countryside bike route and a flat esplanade run.
August 2027
Triathlon and endurance festival in St Neots offering sprint to full distances, team relays, a 12-hour run, festival entertainment, camping and charity fundraising.