Triathlons in UK in August 2025
Find triathlons near me in UK in August 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.

- Sun 3 Aug
- £224.99-£249.99
- Sun 3 Aug
- £224.99-£249.99
Craft Snowman Legend (70.3) Triathlon
Awarded the Event of the year (2021) in the Welsh Triathlon Awards, The Craft Snowman is well known as the toughest multi-terrain triathlon in the UK. It is not for the faint-hearted.
- Chip timing
- Enter online
- Mountainous
- Age 18 & over
- 1900 m lake swimming
- 95 km road cycling
- 21.1 km multi terrain running

- Sun 3 Aug
- £89.99-£114.99
- Sun 3 Aug
- £89.99-£114.99
Craft Snowman Sprint Triathlon
Awarded the Event of the year (2021) in the Welsh Triathlon Awards, The Craft Snowman is well known as the toughest multi-terrain triathlon in the UK. It is not for the faint-hearted.
- Chip timing
- Enter online
- Hilly
- Age 17 & over
- 750 m lake swimming
- 27 km road cycling
- 6.1 km multi terrain running

- Sun 3 Aug
- £105.99-£130.99
- Sun 3 Aug
- £105.99-£130.99
Craft Snowman Standard Triathlon
Awarded the Event of the year (2021) in the Welsh Triathlon Awards, The Craft Snowman is well known as the toughest multi-terrain triathlon in the UK. It is not for the faint-hearted.
- Chip timing
- Enter online
- Hilly
- Mountainous
- Age 17 & over
- 1500 m lake swimming
- 69.2 km road cycling
- 8.4 km multi terrain running

- Sat 9 Aug
- £78-£99
- Sat 9 Aug
- £78-£99
Dorney 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

- Sat 9 Aug
- £99-£120
- Sat 9 Aug
- £99-£120
Dorney Standard Triathlon
Take on a 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
- Age 17 & over
- 1500 km lake swimming
- 40 km road cycling
- 10 km road running

- Sat 9 Aug
- £58
- Sat 9 Aug
- £58
Dorney Super 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
- 400 m lake swimming
- 10 km road cycling
- 2.5 km road running

- Sun 10 Aug
- £73
- Sun 10 Aug
- £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 10 Aug
- £94
- Sun 10 Aug
- £94
ATW St Neots Standard 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 17 & over
- 1500 m river swimming
- 45 km road cycling
- 10 km road running

- Sun 10 Aug
- £53
- Sun 10 Aug
- £53
ATW St Neots Super Sprint Triathlon | Race 1
Swim in the beautiful River Ouse, cycle through scenic villages, run around Riverside Park and complete a Super Sprint Triathlon with the encouragement of fellow sportspeople and spectators!
- Enter online
- Age 15 & over
- 400 m river swimming
- 8 km road cycling
- 2.5 km road running

- Sun 17 Aug
- £53-£55
- Sun 17 Aug
- £53-£55
ATW Oundle Super 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
- 400 m pool swimming
- 13 km road cycling
- 2.5 km trail running

- Sun 17 Aug
- £73-£95
- Sun 17 Aug
- £73-£95
ATW Oundle 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
- £16-£20
- Sun 17 Aug
- £16-£20
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 & over
- 50 m pool swimming
- 800 m mountain biking
- 600 m trail running

- Sun 17 Aug
- £24-£28
- Sun 17 Aug
- £24-£28
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
- £24-£28
- Sun 17 Aug
- £24-£28
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 17 Aug
- £24-£28
- Sun 17 Aug
- £24-£28
ATW Oundle Children’s Triathlon | Tristar 3
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 13-14
- 300 m pool swimming
- 6 km mountain biking
- 2.4 km trail running

- Sun 17 Aug
- £24-£28
- Sun 17 Aug
- £24-£28
ATW Oundle Children’s Triathlon | Youth
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 15-16
- 400 m pool swimming
- 8 km mountain biking
- 3 km trail running

- Wed 27 Aug
- £58
- Wed 27 Aug
- £58
Midweek Dorney Super 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
- 400 m lake swimming
- 10 km road cycling
- 2.5 km road running

- Wed 27 Aug
- £78
- Wed 27 Aug
- £78
Midweek Dorney 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 31 Aug
- £49
- Sun 31 Aug
- £49
HSV Sprint Triathlon
This is a great race for all standards, from the absolute beginner right through to the seasoned triathlete. The course is fast, flat and has great PB potential.
- Enter online
- Flat
- PB
- Age 15 & over
- 400 m pool swimming
- 20 km road cycling
- 5 km road running

- Sun 31 Aug
- 1 charity
- Sun 31 Aug
- 1 charity
Brighton and Hove Triathlon | Super Sprint Triathlon
Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.
- Chip timing
- Enter online
- Flat
- Traffic free
- Age 17 & over
- 300 m sea swimming
- 10 km road cycling
- 2.5 km road running

- Sun 31 Aug
- 1 charity
- Sun 31 Aug
- 1 charity
Brighton and Hove Triathlon | Sprint Triathlon
Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.
- Chip timing
- Enter online
- Flat
- Traffic free
- Age 15 & over
- 750 m sea swimming
- 20 km road cycling
- 5 km road running

- Sun 31 Aug
- 1 charity
- Sun 31 Aug
- 1 charity
Brighton and Hove Triathlon | Standard Triathlon
Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar.
- Chip timing
- Enter online
- Flat
- Traffic free
- Age 17 & over
- 1500 m sea swimming
- 40 km road cycling
- 10 km road running
- Fri 29 - Sun 31 Aug
Full Long Course Weekend
- 2.4 miles lake swimming
- 112 miles road cycling
- 26.2 miles road running
- Fri 29 - Sun 31 Aug
Half Long Course Weekend
- 1.2 miles lake swimming
- 56 miles road cycling
- 13.1 miles road running
- Fri 29 - Sun 31 Aug
Junior Long Course Weekend
- 1.2 miles lake swimming
- 56 miles road cycling
- 10 km road running