Royal Arsenal
Triathlon Calendar near Royal Arsenal 2026-2027
Monthly updates for Royal Arsenal
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Royal Arsenal for 2026-2027! We've gathered 39 exciting races in the area. Check out our detailed list below to find your next local race.
June 2027
Multi-distance triathlon in Windsor on 13 June 2027 with an open-water Thames swim, road cycling past Windsor Castle, and runs along the Long Walk.
The Bridge Triathlon in Dartford offers multiple race formats with open water swim, bike and run courses, free parking and a range of standard to GO TRI distances.
July 2027
Midweek Dorney Triathlon at Dorney Lake offers sprint, super sprint, aquabike and relay options on a flat Olympic course; the event is draft illegal.
Multidistance triathlon in Southend on 11 July 2027 with swim, bike and run options plus aquabike, relay and duathlon; chip timing and water safety provided.
Triathlon at Dorney Lake offers Sprint, Standard and Super Sprint races plus aquabike and team relay on a flat Olympic venue.
Monthly updates for Royal Arsenal
Get new running races (and updates) in your inbox every month.
Point to point sportive triathlon from Dorney Lake near Windsor to Brighton sea front with a lake swim, long road bike and trail run across the South Downs.
Triathlon at Dorney Lake offering Sprint, Standard and Super Sprint races plus aquabike and relay options on a flat lakeside course with British Triathlon membership required.
August 2027
Triathlon at Dorney Lake offering Sprint, Standard and Super Sprint distances with aquabike and relay options on a flat, chip timed course.
Sprint-distance triathlon at Thorpe Park: a 750 m lake swim, 20 km bike and 5 km run with chip timing, medal, free park admission and support for Macmillan.
Midweek triathlon at Dorney Lake with Super Sprint, Sprint, Standard, aquabike and relay options on a flat lake course with chip timing and wetsuit hire available.
A multi distance triathlon weekend in London on 21 to 22 August 2027, featuring a 100 km race plus Olympic, Sprint and Super Sprint options.
Beginner-friendly triathlon at Surrey Docks with open water swims, static bikes and flat run/walk routes focused on community and participation.
Triathlon at Dorney Lake offering Sprint, Standard, Super Sprint, aquabike and relay options on a flat chip timed course; British Triathlon membership required.
September 2027
Triathlon at Trifarm in Chelmer Valley offering sprint and super sprint formats with lake swims, an 18 km hilly bike and multi-lap gravel runs.
Sprint and Standard triathlons at Buckland Park featuring an open water swim, road bike legs through Surrey lanes and a trail run around a 100 acre lake site.
A multisport weekend at Hever Castle in Kent featuring triathlon, duathlon, aquabike, aquathlon, swim and run races across multiple distances and junior categories.
Triathlon at Dorney Lake offering Sprint Standard and Super Sprint races plus aquabike and 2 or 3 person relays on a flat, chip timed course.
October 2027
Multi-distance triathlon and duathlon at Dorney Lake with flat bike and run courses, marked routes, spectator viewing and British Triathlon membership or race pass requirement.
An aquathlon at London Aquatics Centre and Queen Elizabeth Olympic Park featuring a 400 m pool swim followed by a 5 km run around South Park.