- Sun 18 May 2025
- £120-£140
- Sun 18 May 2025
- £120-£140
Bedford, Bedfordshire, UK
ATW Box End Centurion 100km Triathlon
Challenge yourself to tackle a 100km Centurion this year, a distance made popular by the PTO race series. Ideal if you're training for a 70.3 Half-Iron or taking a step up from Standard Distance Tri.
- Enter online
- Undulating
- Age 18 & over
- 2250 m lake swimming
- 80 km road cycling
- 20 km trail running
- Sun 1 Jun 2025
- £165-£186
- Sun 1 Jun 2025
- £165-£186
Huntingdon, Cambridgeshire, UK
ATW Grafman Middle Distance Triathlon
Take on a superb middle distance triathlon at the fantastic Grafham Water. Suitable for all abilites, with a challenging, but achievable course, and custom medal at the finish line.
- Chip timing
- Enter online
- Undulating
- Age 18 & over
- 1900 m lake swimming
- 90 km road cycling + 1844 ft ascent
- 21 km multi terrain running + 253 ft ascent
- Sat 5 Jul 2025
- £130
- Sat 5 Jul 2025
- £130
Saint Neots, Cambridgeshire, UK
ATW Odyssey Half Distance Triathlon
Complete your own Odyssey on a journey of self-discovery in the Cambridgeshire countryside featuring a swim in the River Ouse, a scenic ride and a run around the beautiful town of St Neots.
- Enter online
- Undulating
- Age 18 & over
- 1900 m river swimming
- 90 km road cycling
- 21.1 km road running
- Sun 21 Sep 2025
- £155-£175
- Sun 21 Sep 2025
- £155-£175
Maldon, Essex, UK
Big East Middle Distance Triathlon
The Big East and Maldon Triathlon is brought to you by the largest triathlon organiser in the UK! A great experience featuring a tidal river swim.
- Enter online
- Undulating
- Age 18 & over
- 1500 m river swimming
- 86 km road cycling
- 20 km trail running