Triathlons in Northamptonshire
Find triathlons near me in Northamptonshire 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 17 Aug
- £21
- Sun 17 Aug
- £21
ATW Oundle Children’s Triathlon | Tristart
ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.
- Chip timing
- Enter online
- Age 8-8
- 50 m pool swimming
- 800 m mountain biking
- 600 m trail running
- Sun 17 Aug
- £29
- Sun 17 Aug
- £29
ATW Oundle Children’s Triathlon | Tristar 1
ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.
- Chip timing
- Enter online
- Age 9-10
- 150 m pool swimming
- 2 km mountain biking
- 1.2 km trail running
- Sun 17 Aug
- £29
- Sun 17 Aug
- £29
ATW Oundle Children’s Triathlon | Tristar 2
ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Childrens Triathlon! Ideal for all levels including very first attempts at triathlon.
- Chip timing
- Enter online
- Age 11-12
- 200 m pool swimming
- 4 km mountain biking
- 1.8 km trail running
- Sun 29 Jun
Sywell Sprint Triathlon Series – June Race
- 750 m lake swimming
- 20 km road cycling
- 5 km road running