- Fri 21 - Sun 23 Jun
- £100
- Fri 21 - Sun 23 Jun
- £100
Chesham, Buckinghamshire, UK
ATW Chiltern Endurance Weekend | Half Chiltern Endurance Challenge
Join this exhilarating Endurance Weekend in the stunning Chiltern Hills! Whether you seek a weekend of endurance, picturesque sights or a chance to bond with fellow athletes, this is your opportunity!
- Enter online
- Age 18 & over
- 1.9 km lake swimming
- 90 km road cycling
- 21.1 km trail running
- Sun 14 Jul
- £110
- Sun 14 Jul
- £110
Marlow, Buckinghamshire, UK
The One on the River | Marlow | Middle Distance Triathlon
Taking place across the scenic Thames Valley area. Swim the river, cycle the hilly open roads, and run the flat Thames path as part of an exciting multi-activity event for summer.
- Chip timing
- Enter online
- Age 17 & over
- 1900 m river swimming
- 91 km road cycling
- 20 km trail running
- Sun 22 Sep
- £110
- Sun 22 Sep
- £110
Marlow, Buckinghamshire, UK
The One on the River | Henley | Middle Distance Triathlon
Taking place across the scenic Thames Valley area with routes going through Culden Faw Estate. Swim the river, cycle the hilly open roads, run through the trail paths enjoying great views.
- Chip timing
- Enter online
- Age 17 & over
- 1900 m river swimming
- 89 km road cycling
- 20 km trail running