Standard duathlons in October 2025
Find standard duathlons in October 2025 - filter by date or location, display on a map or use the advanced search to find your perfect race.
Filter by month
Filter by place
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.

- Sat 4 Oct
- £68-£88
- Sat 4 Oct
- £68-£88
Dorney Standard Distance Duathlon
Challenge yourself to a duathlon and take the opportunity to race around this unique and inspiring Olympic venue!
- Chip timing
- Enter online
- Flat
- PB
- Age 17 & over
- 10 km road running
- 38 km road cycling
- 5 km road running

- Sun 12 Oct
- £68-£83
- Sun 12 Oct
- £68-£83
ATW Holdenby House Standard Distance 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. Relay option.
- Enter online
- Age 17 & over
- 10.8 km trail running + 498 ft ascent
- 38 km road cycling + 1602 ft ascent
- 5.4 km trail running + 249 ft ascent

- Sun 26 Oct
- £75-£90
- Sun 26 Oct
- £75-£90
ATW Grafham Duathlon - Incorporating the European Standard Duathlon Qualifier | Standard Distance Duathlon - incorporating Euro 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.
- Enter online
- Age 17 & over
- 10 km road running + 59 ft ascent
- 38 km road cycling + 673 ft ascent
- 5 km road running + 30 ft ascent
- Sat 4 Oct
Llandudno Triathlon & Duathlon | Standard Duathlon
- 5 km road running
- 34.75 km road cycling + 2979 ft ascent
- 9.4 km road running + 52 ft ascent
- Sat 4 Oct
Active Northumberland Gravel Duathlon
- 10 km trail running
- 34 km mountain biking
- 6.4 km trail running