Chelmsford
Triathlon Calendar near Chelmsford 2026-2027
Monthly updates for Chelmsford
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Explore the top triathlons near Chelmsford for 2026-2027! We've gathered 7 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
Midweek Aquathlon at DA1 5PR: 650 m open water swim in the south lake followed by a three lap 5.7 km run, field limited to 40 for water safety.
Trifarm Sprint Triathlon Equinox on 13 September 2026 features a lake swim, an 18 km bike over North Hill and a 5 km perimeter run with a Super Sprint option.
Aquathlon at London Fields Lido combining a 400 m pool swim with a 5 km loop around London Fields Common, listed in the Senior London League.
May 2027
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.
June 2027
Club organised BTF sanctioned triathlon at White Oaks Leisure Centre in Swanley on 13 June 2027 offering sprint, standard and aqua bike distances with finisher mementos.
Monthly updates for Chelmsford
Get new running races (and updates) in your inbox every month.
July 2027
A coastal triathlon in Southend-on-Sea offering sprint, standard, aquabike, relay and duathlon options with chip timing, water safety cover and a marked course. The event includes marshals, a secure transition area and a bespoke medal.
August 2027
A multi distance triathlon weekend in London on 21 to 22 August 2027, featuring the 100km T100 plus Olympic, Sprint and Super Sprint distances.