Chelmsford
Triathlon Calendar near Chelmsford 2026-2027
Monthly updates for Chelmsford
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Chelmsford for 2026-2027! We've gathered 9 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
Bridge Setember 2nd Triathlon in Dartford on 6 September 2026 features a lake swim followed by bike and run stages, with sprint and shorter GOTRi distance options and multiple entry categories.
A charity triathlon at Blackwater Leisure Centre in Maldon featuring pool swims, rural bike laps and mostly paved runs with proceeds shared with the Stroke Association.
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.
October 2026
A swim and run event at London Aquatics Centre and Queen Elizabeth Olympic Park on 31 October 2026, featuring a 400 m pool swim and a measured 5 km park run, with chip timing, race photos and a themed medal.
Monthly updates for Chelmsford
Get new running races (and updates) in your inbox every month.
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.
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
London T100 Triathlon on 21 to 22 August 2027 offers multi-distance triathlon racing in central London, including the 100 km distance and age group qualifying spots for Qatar.