- Sat 28 - Sun 29 Sep
- £28-£295
- Sat 28 - Sun 29 Sep
- £28-£295
Hever Castle Triathlon and Multisport Festival
Race through the beautiful grounds and surrounding area of Hever Castle on an event of your choice from starter to elite then celebrate with friends and family in the festival village.
- Families
- Recycling
- Newcomers
- Event village
- Park
- Rural
- Sustainability policy
- Age 9 & over
- Half Ironman
- Olympic triathlon
- Sprint triathlon 2
- Super sprint triathlon
- Novice triathlon
- + 16 more races
- Sat 5 - Sun 6 Oct
- £8-£78
- Sat 5 - Sun 6 Oct
- £8-£78
Kielder Marathon Weekend
Britain's Most Beautiful Marathon returns complete with trail runs, a gravel duathlon and junior fun runs, all enjoying the stunning backdrop of Kielder Water and warm northern spirit.
- Music
- Event village
- Rural
- Free venue entry
- Age 6 & over
- Standard duathlon
- 10K run
- Marathon
- Half marathon
- Fun run 2
- Sun 20 Oct
- £55-£80
- Sun 20 Oct
- £55-£80
ATW Holdenby House Duathlon
Based in the grounds of the 2,000 acre Holdenby Estate, the traffic-free run lap follows a scenic trail and the rolling bike course enjoys fast-riding country roads.
- Newcomers
- Event village
- Park
- Rural
- Age 15 & over
- Sprint duathlon
- Standard duathlon
- Sun 27 Oct
- £55-£80
- Sun 27 Oct
- £55-£80
ATW Grafham Duathlon (inc. 2025 World Championship Standard Distance Duathlon Qualifier)
Join ATW, the largest multisport organiser in the UK, at the iconic Grafham Water - a venue that has been used for award-winning events, national championships and GB qualifier races.
- Recycling
- Newcomers
- Event village
- Rural
- Sustainability policy
- Age 17 & over
- Sprint duathlon
- Standard duathlon
- Sun 3 Nov
- £36-£55.12
- Sun 3 Nov
- £36-£55.12
Devon Duathlon Autumn
Sprint and Standard distance duathlons at Woodbury Common offering mixed terrain running and enjoyable cycling on rolling roads. Chip timed and BTF affiliated.
- Trees not tees
- Recycling
- Newcomers
- Rural
- Free venue entry
- Sustainability policy
- Plastic-free event
- Age 15 & over
- Sprint duathlon
- Standard duathlon
- Sun 16 Mar 2025
- £17-£44
- Sun 16 Mar 2025
- £17-£44
Donut Duathlon Spring
The flat terrain of the Torbay Velodrome offers a range of Duathlon distances, catering to all ages and abilities in a safe, supported and inclusive manner, with a medal and donut at the finish line!
- Families
- Trees not tees
- Recycling
- Urban
- Sustainability policy
- Age 3 & over
- Sprint duathlon
- Super sprint triathlon
- Kids duathlon 4
- Sun 29 Sep
Llandudno Triathlon
- Sprint triathlon
- Olympic triathlon
- Standard duathlon
- Sun 6 Oct
MedwayTri Junior Duathlon - IRD for London, East and South East
- Kids duathlon 6
- Sun 6 Oct
The Last Tri
- Sprint triathlon
- Olympic triathlon
- Sprint duathlon
- Sun 6 Oct
HaverTri - the Adams Harrison Triathlon Festival
- Sprint triathlon 2
- Sprint duathlon 2
- Sprint aquathlon
- Kids aquathlon 5
- Sun 13 Oct
South East Team Relay, Fast Furious and GOTri Duathlon
- Super sprint duathlon 2
- Sprint duathlon
- Sun 13 Oct
Shrewsbury Junior and Super Sprint Duathlon
- Kids duathlon 4
- Super sprint duathlon
- Sun 13 Oct
Deviation Duathlon
- Sprint duathlon
- Standard duathlon
- Long duathlon
- Sun 13 Oct
Can But Tri Adult Duathlon Series - Event 2
- 2.25 km trail running
- 7.25 km mountain biking
- 2.25 km trail running
- Sun 10 Nov
Dorney Lake Duathlon
- Super sprint duathlon
- Sprint duathlon
- Standard duathlon
- Sun 10 Nov
Can But Tri Adult Duathlon Series - Event 3
- 2.25 km trail running
- 7.25 km mountain biking
- 2.25 km trail running
- Sun 24 Nov
Rempstone Roast Off Road Duathlon
- 2.5 miles trail running
- 11.5 miles mountain biking
- 2.5 miles trail running
- Sun 15 Dec
Dorney Lake Duathlon
- Super sprint duathlon
- Sprint duathlon
- Standard duathlon