Standard duathlons in UK in October 2025
Find standard duathlons near me in UK in October 2025 - 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.

- 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