Duathlons in South East
Find duathlons near me in South East for 2025/2026 - search by date or place, display on a map or use the advanced search to find your perfect race.
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Click an event for full event details, location, route, sustainability, what's included and how to enter.

- Sun 8 Jun
- Entries close soon
- Sun 8 Jun
- Entries close soon
Eastbourne Triathlon | Standard Duathlon
Experience a big day of run-bike-run multi sport from the famous seafront promenade and along closed roads as part of the Eastbourne Triathlon weekend.
- Chip timing
- Enter online
- Undulating
- Traffic free
- Age 17 & over
- 5 km road running
- 36.6 km road cycling
- 10 km road running

- Sat 27 Sep
- £75
- Sat 27 Sep
- £75
Hever Castle | Sprint Duathlon
2025 European Sprint Duathlon Qualifier. Get active in the award-winning grounds and surrounding Kent countryside in Sprint Duathlon then celebrate completing your challenge in the festival village.
- Chip timing
- Enter online
- Age 15 & over
- 5 km trail running
- 20 km road cycling
- 2.5 km trail running

- Sun 28 Sep
- £80
- Sun 28 Sep
- £80
Hever Castle | Standard Duathlon
Get active in the award-winning grounds and surrounding Kent countryside in a Standard Duathlon! Recruit your friends and celebrate completing your challenge in the festival village.
- Chip timing
- Enter online
- Age 17 & over
- 12 km trail running
- 40 km road cycling
- 4.3 km trail running

- Sun 28 Sep
- £90
- Sun 28 Sep
- £90
Hever Castle | Middle Duathlon
Get active in the award-winning grounds and surrounding Kent countryside in a Middle Distance Duathlon! Recruit your friends and celebrate completing your challenge in the festival village.
- Chip timing
- Enter online
- Age 18 & over
- 10.5 km trail running
- 90 km road cycling
- 10.5 km trail running

- Sun 9 Nov
- £47
- Sun 9 Nov
- £47
Dorney Super Sprint Distance Duathlon
Challenge yourself to a duathlon and take the opportunity to race around this unique and inspiring Olympic venue!
- Enter online
- Flat
- PB
- Age 15 & over
- 2.5 km road running
- 10 km road cycling
- 2.5 km road running

- Sun 9 Nov
- £58-£75
- Sun 9 Nov
- £58-£75
Dorney Sprint Distance Duathlon
Challenge yourself to a duathlon and take the opportunity to race around this unique and inspiring Olympic venue!
- Enter online
- Flat
- PB
- Age 15 & over
- 5 km road running
- 19 km road cycling
- 2.5 km road running

- Sun 9 Nov
- £68-£88
- Sun 9 Nov
- £68-£88
Dorney Standard Distance Duathlon
Challenge yourself to a duathlon and take the opportunity to race around this unique and inspiring Olympic venue!
- Enter online
- Flat
- PB
- Age 17 & over
- 10 km road running
- 38 km road cycling
- 5 km road running
- Sat 7 Jun
Blenheim Palace Triathlon | Full Duathlon | Saturday
- 10 km road running
- 44 km road cycling
- 5 km road running
- Sat 7 Jun
Blenheim Palace Triathlon | Half Duathlon | Saturday
- 5 km road running
- 22 km road cycling
- 5 km road running
- Sat 4 Oct
Dorney Duathlon - October | Super Sprint Distance
- 2.5 km road running
- 10 km road cycling
- 2.5 km road running
- Sat 4 Oct
Dorney Duathlon - October | Sprint Distance
- 5 km road running
- 19 km road cycling
- 2.5 km road running
- Sat 4 Oct
Dorney Duathlon - October | Standard Distance
- 10 km road running
- 38 km road cycling
- 5 km road running