Sunbury-on-Thames
Triathlon Calendar near Sunbury-on-Thames 2026-2027
Monthly updates for Sunbury-on-Thames
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Sunbury-on-Thames for 2026-2027! We've gathered 47 exciting races in the area. Check out our detailed list below to find your next local race.
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.
A routed run from Hampstead High Street to Brockwell Park of about half a marathon through London parks and ponds with swims included and a relaxed club atmosphere.
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.
Duathlon at Dorney Lake on 12 December 2026 with Super Sprint, Sprint, Standard and relay options on a flat, chip-timed road course.
Monthly updates for Sunbury-on-Thames
Get new running races (and updates) in your inbox every month.
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.
Multi-discipline duathlon and off-road endurance races at Henley Showground on 7 February 2027, with marked courses, chip timing and on-course support.
A roughly half a marathon run through London parks and lidos from Hampstead to Brockwell Park with organised swims and a kit van, organised by Above Below.
March 2027
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.
Run bike run event at Hillingdon Cycle Circuit on 14 March 2027 with traffic free laps and races for adults and youth.
April 2027
Dorney Lake duathlon with Super Sprint, Sprint and Standard distances, relay options and chip timed results on a flat road course.
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.
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.
East Grinstead Triathlon on 9 May 2027 features pool swims, a 26 km bike through nearby villages and town runs, with relay, Try a Tri and aquabike options.
Hatch End Harrow Triathlon in London offers pool swims, bike and run stages across adult and junior categories, organised by a local grassroots club.
A club run event at Sevenoaks Leisure Centre with a 400 m pool swim, a 25 km undulating bike through Kent and a run through Knole Park.
Multisport festival at Dorney Lake on 16 May 2027 featuring triathlon, duathlon, aquabike, open water swims and 5K to 15K runs, entry from £25.
Triathlon at Higginson Park on 30 May 2027 with Middle Distance, Olympic and Sprint races, a Thames swim and road bike and run courses.