Olympic triathlons (standard distance) in UK in September 2025
Find olympic triathlons (standard distance) near me in UK in September 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 7 Sep
- £99-£120
- Sun 7 Sep
- £99-£120
Helvellyn Triathlon
A renowned, challenging and unique event where the toughness of the course is only matched by the stunning scenery of the Lake District National Park. Not just another race but highly demanding.
- Enter online
- Mountainous
- Age 17 & over
- 1.5 km lake swimming
- 59 km road cycling
- 15 km trail running
- Sat 13 Sep
- £99-£120
- Sat 13 Sep
- £99-£120
ATW Grafham Standard Triathlon
Athletes of all levels are guaranteed to enjoy The Standard Triathlon at this fantastic venue that has been used for award-winning triathlons, national championships and GB qualifier races!
- Chip timing
- Enter online
- Age 17 & over
- 1500 m lake swimming
- 38 km road cycling
- 10 km road running
- Sun 14 Sep
- £83-£98
- Sun 14 Sep
- £83-£98
Aviemore Triathlon | Long Hard Durty
Join the Aviemore Triathlon in the beautiful Cairgorms and enjoy an open water swim in the cool, calm waters of Loch Morlich and enjoy mountain biking and running on the trails of Glenmore Forest.
- Chip timing
- Enter online
- Hilly
- Age 15 & over
- 1000 m lake swimming
- 18 km mountain biking
- 9 km trail running
- Sun 21 Sep
- £82-£97
- Sun 21 Sep
- £82-£97
Eton Dorney Standard Triathlon
The Olympic venue, Eton Dorney, offers pan-flat, traffic-free roads and a beautiful clear lake for Standard-distance triathletes to enjoy in an exclusive setting.
- Chip timing
- Enter online
- Flat
- Traffic free
- Age 17 & over
- 1.5 km lake swimming
- 40 km road cycling
- 10 km trail running
- Sun 21 Sep
- £99-£120
- Sun 21 Sep
- £99-£120
ATW Big East & Maldon Standard 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 17 & over
- 1500 m river swimming
- 40 km road cycling
- 10 km trail running
- Sat 27 Sep
- £99-£120
- Sat 27 Sep
- £99-£120
Dorney Triathlon | September | Standard Triathlon
Take on a multi-activity or distance 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 17 & over
- 1500 m lake swimming
- 40 km road cycling
- 10 km road running
- Sun 28 Sep
- £125-£165
- Sun 28 Sep
- £125-£165
Hever Castle | Olympic Triathlon
Great Britain Age Group 2026 Team Qualifier. Get active in the award-winning grounds and surrounding Kent countryside in an Olympic Triathlon in an event for all ability levels then celebrate after!
- Chip timing
- Enter online
- Age 17 & over
- 1.5 km lake swimming
- 40 km road cycling
- 10 km road running
- Sun 28 Sep
- £65
- Sun 28 Sep
- £65
Hever Castle | Standard Aquathlon
Get active in the award-winning grounds and surrounding Kent countryside in a Standard Aquathlon! Recruit your friends and celebrate completing your challenge in the festival village.
- Chip timing
- Enter online
- Age 17 & over
- 1.5 km lake swimming
- 10 km road running
- Sat 20 Sep
The Brutal Extreme Triathlon | The Brutal Bach Standard
- 0.6 mile lake swimming
- 28.99 miles road cycling
- 9.5 miles trail running