Olympic triathlons (standard distance) in UK in September 2025
Find olympic triathlons (standard distance) near me in UK in September 2025 - filter by date or location, display on a map or use the advanced search to find your perfect race.
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- Sun 7 Sep
- £99-£120
- Entries closed
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
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 + 748 ft ascent
- 10 km road running
- Sat 13 Sep
- £70-£88
Sundowner Olympic Triathlon
Bringing back the Sundowner Olympic Triathlon! An unforgettable triathlon event at Allerthorpe Lakeland Park in Yorkshire is now back on the race calendar and 100% going ahead!
- Chip timing
- Enter online
- Flat
- Age 18 & over
- 1500 km lake swimming
- 40 km road cycling + 146 ft ascent
- 10 km trail running
- 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
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
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 + 479 ft ascent
- 10 km trail running + 86 ft ascent
- Sat 27 Sep
- £99-£120
Dorney Triathlon | September | Standard
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
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 7 Sep
The 1066 Triathlon | Standard Triathlon
- 1500 m sea swimming
- 40 km road cycling + 955 ft ascent
- 10 km road running
- Sun 7 Sep
Rawson Group Triathlon Y Bala | Standard Triathlon
- 1500 km lake swimming
- 37 km road cycling + 1181 ft ascent
- 10 km road running + 255 ft ascent
- Sun 7 Sep
Manx Tri Club Triathlon Championships | Standard Distance
- 1500 m lake swimming
- 40 km road cycling
- 10 km road running
- Sun 14 Sep
Bournemouth International Triathlon | Standard Triathlon
- 1500 m sea swimming
- 40 km road cycling + 1007 ft ascent
- 10 km road running + 232 ft ascent
- 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
- Sun 21 Sep
The One on the River | Henley | Standard Triathlon
- 1500 m river swimming
- 54 km road cycling
- 10 km trail running
- Sun 21 Sep
Superfeet Sandman Triathlon and Duathlon | Standard Triathlon
- 1500 m sea swimming
- 42.3 km road cycling + 1154 ft ascent
- 9.9 km multi terrain running + 282 ft ascent