- Sat 2 Aug 2025
- £109
- Sat 2 Aug 2025
- £109
London T100 | Sprint
Formerly The London Triathlon, this is one of the world’s biggest triathlons where athletes will race through the capital on a landmark-filled route. London is calling!
- Chip timing
- Enter online
- Traffic free
- Age 17 & over
- 750 m dock swimming
- 20 km road cycling
- 5 km road running
- Sat 9 Aug 2025
- £78-£99
- Sat 9 Aug 2025
- £78-£99
Dorney Triathlon | August | Sprint Triathlon
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
- Chip timing
- Enter online
- Flat
- PB
- Age 15 & over
- 750 m lake swimming
- 20 km road cycling
- 5 km road running
- Sun 10 Aug 2025
- £73
- Sun 10 Aug 2025
- £73
ATW St Neots Sprint Triathlon | Race 1
Stunning riverside venue! Swim in the beautiful River Ouse, cycle through scenic villages and run around Riverside Park. The Sprint and Standard are included in the 2024 Eastern Region Series.
- Enter online
- Age 15 & over
- 750 m river swimming
- 24 km road cycling
- 5 km road running
- Sun 17 Aug 2025
- £73-£95
- Sun 17 Aug 2025
- £73-£95
ATW Oundle Triathlon | Sprint Distance Triathlon
ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Triathlon! It doesn’t matter if you are an experienced triathlete or this is your very first attempt at swim-bike-run.
- Chip timing
- Enter online
- Age 15 & over
- 600 m pool swimming
- 25 km road cycling
- 5 km trail running
- Sun 17 Aug 2025
- £60-£89
- Sun 17 Aug 2025
- £60-£89
Buckinghamshire Triathlon | Sprint
A competitive Sprint triathlon at an accessible location for a range of abilities with official finishers medals and trophies awarded to top 3 in each category as well as 1st place in every age group.
- Enter online
- Age 16 & over
- 300 m pool swimming
- 20 km road cycling
- 5 km trail running
- Wed 27 Aug 2025
- £78
- Wed 27 Aug 2025
- £78
Midweek Dorney Triathlon | August | Sprint Triathlon
Take on this multi-activity event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 15 & over
- 750 m lake swimming
- 20 km road cycling
- 5 km road running
- Sun 24 Aug 2025
West Lancs Summer Triathlon, Duathlon & Aquathlon | Triathlon
- 400 m pool swimming
- 21.5 km road cycling
- 5 km trail running