Chiltern Hills
Triathlon Calendar near Chiltern Hills 2026-2027
Monthly updates for Chiltern Hills
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Chiltern Hills for 2026-2027! We've gathered 31 exciting races in the area. Check out our detailed list below to find your next local race.
August 2026
A sprint-distance triathlon at Thorpe Park on 23 August 2026 with a 750m lake swim, 20 km bike and 5 km three-lap run. Organised by RunThrough, the event supports Macmillan and includes Thorpe Park entry.
Evening triathlon at Dorney Lake with sprint and super sprint races, aquabike and relays, chip timing, wetsuit hire and free parking.
Experience a triathlon at an iconic Olympic venue featuring a calm open water swim and a flat traffic free course. Choose from Super Sprint Standard Aquabike or relay options with chip timing and themed medals for all finishers.
Triathlon events at Dorney Lake with Super Sprint, Sprint and Standard distances plus aquabike and relay options at an Olympic venue.
September 2026
A multisport event at Dorney Lake, offering triathlon, duathlon, aquabike, aquathlon and open water swims with marked courses and chip timing.
Monthly updates for Chiltern Hills
Get new running races (and updates) in your inbox every month.
Nettleden Duathlon at Nettleden Lodge near Berkhamsted combines a 6 km run, a 24 km cycle and another 6 km run. It accepts individual entrants and relay teams, includes free kids races, and raises funds for charities.
Closed-road triathlon at Willen Lake, Milton Keynes with Sprint and Standard distances, lake swim, traffic free bike course and flat lakeside run.
Multi-discipline races at Hi5 Open Water Swim Centre in Reading on 13 September 2026, offering super sprint to standard triathlon, aquathlon and aquabike distances.
Multisport event at Henley Showground on the River Thames offering triathlon, aquabike and open water swims on marked, marshalled courses.
A traffic free triathlon at Eton Dorney on 20 September 2026 offering super sprint, sprint and standard distances for individuals and three‑person teams, with chip timing, water safety cover and on‑site parking.
Multisport triathlon at Emberton Country Park on 20 September 2026 with Middle, Standard and Sprint distances, plus Aquabike, Aquathlon and Bike-Run options.
A women-only aquathlon at Shepperton Lake combining calm open-water swims with a flat run, offering beginner and step-up distances plus on-site facilities for participants and spectators.
Triathlon at Dorney Lake on 26 September 2026 with Super Sprint, Sprint and Standard distances, plus Aquabike and relay options. The event supports Macmillan Cancer Support and features chip timed results, race photos and an event village.
Triathlon at Dorney Lake in Windsor with Super Sprint, Sprint, Standard, aquabike and relay options on a flat, chip timed course; British Triathlon licence required.
Sprint and Super Sprint triathlons at Hampton Pool feature pool swims in a 26°C lido, road cycling and runs beside Hampton Court with safety measures for open roads.
October 2026
Race at a historic Olympic venue with this flat and fast road duathlon. Choose from Super Sprint Standard or Relay distances and enjoy a chip timed course through the scenic grounds of Dorney Lake.
Multi-distance duathlon and triathlon at Dorney Lake with flat, chip-timed bike and run courses, marked routes, spectator viewing and British Triathlon membership required.
Triathlon at Dorney Lake on 3 October 2026 with Super Sprint, Sprint and Standard distances, plus aquabike and relays; calm open water, flat road course, chip-timed results, marshals and an event village with race photos.
Multisport event at Salcey Forest featuring Sprint and Standard duathlons plus 5 km and 10 km trail runs on fully off road forest routes.
November 2026
A chip timed duathlon at Dorney Lake with Super Sprint, Sprint and Standard distances on flat road courses. Relay entries for two or three athletes and entry includes a themed medal and free race photos.