Knebworth
Triathlon Calendar near Knebworth 2026-2027
Monthly updates for Knebworth
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Knebworth for 2026-2027! We've gathered 19 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
A relaxed community triathlon in South London with open water swim, stationary bike and dockside run where participants choose their own distances.
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.
Nettleden Duathlon on 12 September 2026 at Nettleden Lodge near Berkhamsted features a 6 km run, 24 km cycle and 6 km run with individual and relay options plus kids races and fundraising.
Closed-road triathlon at Willen Lake with sprint and standard distances, open-water swims, traffic-free bike laps and a flat lakeside run in Milton Keynes.
Riverside triathlon in St Neots on 20 September 2026 offering sprint to middle distances, open water swim, camping, wetsuit hire and relay options.
Monthly updates for Knebworth
Get new running races (and updates) in your inbox every month.
Triathlon event at Emberton Country Park on 20 September 2026 offering middle, standard and sprint distances plus relay and aquabike options with trophies and a 5% booking fee.
Willesden Triathlon Club hosts triathlon and aquathlon races at Willesden Sports Centre, featuring a 400 m pool swim and 5 km run, with entries via British Triathlon.
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.
October 2026
Aquathlon at the London Aquatics Centre: a 400 m pool swim followed by a measured 5 km run in Queen Elizabeth Olympic Park, open to ages 15 and over.
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.
Team triathlon relay at Box End Lakes with 350 m swim, 7.7 km bike and 1 km run per athlete, offering team and single entry options and on site camping.
A 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.
July 2027
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.
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.
August 2027
Triathlon and multisport festival in St Neots on 7 August 2027 with distances from sprint to full, a 12 hour run, relay options and family festival features.
Two triathlon races in Bedford town centre with river swims, country bike routes and multi-lap riverside runs across Olympic and Sprint distances.
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.
September 2027
Triathlon at Box End Lakes on 19 September 2027 offering Sprint, Standard and Middle Distance races plus aquabike and relay options in clear open water.