South East (England)
Triathlon Calendar South East (England) 2026-2027
Monthly updates for South East (England)
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in South East (England) for 2026-2027! Our updated list features 72 exciting races across the region. Find your next race in South East (England) below and join the running community at these great events!
November 2026
Duathlon at Dorney Lake with Super Sprint, Sprint and Standard distances on a flat Olympic-course loop, chip timing, free photos and relay options.
Family-friendly adventure racing at Alice Holt Forest combining biking, running and checkpoint navigation, including a 8 km Wolf Cub Challenge and team entry options.
Club duathlon at Betteshanger Country Park on November 15th with pre-booking required, specified entry fees payable by bank transfer and on-site registration at the trackside shelter.
December 2026
A winter adventure race in the Surrey Hills combining trail running and mountain biking with map and compass navigation, multiple time-based options and bike hire available.
Timed races from 5k to 50k at Goodwood Motor Circuit on 6 December 2026 with chip timing, free photos, an event village and measured laps on traffic free tarmac.
Monthly updates for South East (England)
Get new running races (and updates) in your inbox every month.
Duathlon at Dorney Lake on 12 December 2026 with Super Sprint, Sprint, Standard and relay options on a flat, chip-timed road course.
January 2027
Trail running and mountain biking in the Chilterns with map and compass navigation, multiple timed race options and bike hire available.
Duathlon at Dorney Lake on 17 January 2027 offering Super Sprint, Sprint and Standard distances on a flat, chip timed course with relay options.
February 2027
Duathlon at Dorney Lake with Super Sprint, Sprint and Standard distances on flat road laps, relay options, chip timing and free race photos.
Winter Duathlon Series Round 3 is on 7 February 2027 at Betteshanger Country Park, with pre-booking required, entry fees by bank transfer, free parking with car registration and three start groups.
Multi-discipline duathlon and off-road endurance races at Henley Showground on 7 February 2027, with marked courses, chip timing and on-course support.
Multiple timed distances on the historic Goodwood Motor Circuit with free photos, chip timing, finish goodies and an event village.
A round of the Winter Duathlon Series at Betteshanger Country Park on 28 February 2027 with pre booking, modest entry fees, and recommended start groups by expected finish time.
March 2027
Indoor pool swim with poolside transition followed by a seafront run in Littlehampton, offered in two distances with age categories and prizes.
Duathlon at Dorney Lake with Super Sprint, Sprint and Standard distances on a flat, chip timed road course with relay options and free race photos.
Final round of the Winter Duathlon Series and the Daniel Squire Club Championship at Betteshanger Country Park on 14 March 2027, pre-booking required and entry fee applies.
April 2027
Dorney Lake duathlon with Super Sprint, Sprint and Standard distances, relay options and chip timed results on a flat road course.
Pool-based sprint triathlon at Applemore Leisure Centre: 400 m swim, 21 km bike through the New Forest and a 5 km run to Dibden Purlieu.
A classic run, bike, run duathlon on 18 April 2027 around Chieveley and the West Berkshire downs, with two 5 km runs and a 25 km bike leg.
May 2027
Triathlon at Dorney Lake offers Sprint, Standard and Super Sprint races plus aquabike and relay options on a flat, chip timed course at an Olympic venue.