Welwyn Garden City
Triathlon Calendar near Welwyn Garden City 2026-2027
Monthly updates for Welwyn Garden City
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Welwyn Garden City for 2026-2027! We've gathered 33 exciting races in the area. Check out our detailed list below to find your next local race.
October 2026
Pool and run aquathlon at the London Aquatics Centre in October 2026, featuring a 400m swim and a 5km run around South Park.
A 432 m pool swim followed by a 5 km run at Hampton Pool and Bushy Park on 25 October 2026, age 16+, entry £45 includes chip timing and a finisher medal.
November 2026
Duathlon at Dorney Lake offering Super Sprint, Sprint and Standard distances on a flat, chip timed course with marked run laps and balcony spectator views.
December 2026
Super Sprint, Sprint and Standard duathlon races at Dorney Lake on a flat, chip timed multi-lap course with spectator viewing and required British Triathlon membership.
January 2027
Trail running and mountain biking in the Chilterns on 9 January 2027 with score-format navigation, solo or team entries and options from 2 hour to 5 hour events.
Monthly updates for Welwyn Garden City
Get new running races (and updates) in your inbox every month.
Duathlon at Dorney Lake on a flat, multi-lap Olympic venue offering Super Sprint, Sprint and Standard distances; event is draft-illegal and requires British Triathlon membership.
February 2027
Duathlon at Dorney Lake with Super Sprint, Sprint and Standard distances on a flat, chip timed course that is draft illegal and spectator friendly.
March 2027
Three-distance duathlon at Dorney Lake with flat chip-timed bike and run courses, spectator viewing, and British Triathlon licence requirements.
A family focused run bike run at Hillingdon Cycle Circuit on 14 March 2027 with multiple distances on a traffic free tarmac circuit.
April 2027
Duathlon at Dorney Lake with Super Sprint, Sprint and Standard distances on a flat, chip-timed course, with spectator viewing and British Triathlon licence required.
May 2027
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.
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.
Multisport festival at Dorney Lake on 16 May 2027 featuring triathlon, duathlon, aquabike, open water swims and 5K to 15K runs, entry from £25.
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.
Marlow Triathlon on 30 May 2027 at Higginson Park features open water River Thames swims, cycling through the Chilterns and riverside runs, with medals and chip timing.
Multisport event at Higginson Park in Marlow featuring triathlon, duathlon, aquabike, aquathlon and 750m 1500m 3000m open water swims with chip timed results and finisher medals.
June 2027