Olympic triathlons in the UK
An Olympic or standard distance triathlon involves a 1.5km swim, a 40km bike ride and a 10km run. Short enough for confident beginners but long enough to be a real endurance challenge, Olympic triathlons have a lot to offer - and as the most popular type of triathlon in the UK, there are plenty of events to choose from. Select your location for Olympic triathlons in your area or scroll down to see events coming up.
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Olympic and standard distance triathlons in 2025
Featured events are listed below - select a month/region or the map view to see all events.


- Sun 4 May
- £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.
- 1500 m river swimming
- 45 km road cycling
- 10 km road running

- Mon 5 May
- £59
Tavistock Triathlon | Standard
Tavistock Triathlon is for all ages and abilities using the amazing Olympic legacy 50m pool at Mount Kelly with quiet rolling roads for the bike and the disused railway line for the run. What a venue!
- 800 m pool swimming
- 36 km road cycling
- 10 km road running

- Sun 18 May
- £99-£120
ATW Box End Standard Triathlon
Stunning watersports venue with immaculate water quality, scenic run route, custom designed medal plus team relay option.
- 1500 m lake swimming
- 40 km road cycling
- 10 km road running

- Sun 18 May
- £73-£84
Roadford Lake Triathlon | Standard
This triathlon returns for another successful year! It’s a superb swimming venue with quiet rolling roads for the bike course and a cracking run too. Plus there's lakeside camping available too.
- 1.5 km lake swimming
- 40 km road cycling
- 10 km road running

- Sun 25 May
- £99-£120
Dorney Standard 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.
- 1500 m lake swimming
- 40 km road cycling
- 10 km road running

- Sat 7 Jun
- £99-£120
Dorney Standard 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.
- 1500 m lake swimming
- 40 km road cycling
- 10 km road running

- Sun 8 Jun
- £75-£81
Dartmouth Triathlon | Standard
The successful Dartmouth Triathlon returns for its 9th year! Sea swim, stunning coastal bike route, out and back run including Devon's flattest road, plus chance to camp on the beach!
- 1.5 km sea swimming
- 40 km road cycling
- 10 km road running

- Sun 8 Jun
- £70
WMD Classic Triathlon
The Classic Triathlon will not fail to impress. With stunning views of Weymouth nature reserve and a true test of stamina, you'll be beaming with pride at the finish line.
- 1.5 km sea swimming
- 40 km road cycling
- 10 km multi terrain running

- Sun 15 Jun
- £55-£60
Plymouth Triathlon | Standard
Previously known as Mount Edgcumbe Triathlon, triathletes of all abilities can experience a truly exceptional coastal venue, finishers medal, t-shirt and memorable day out at a fantastic event.
- 1500 m sea swimming
- 40 km road cycling
- 10 km trail running

- Sun 15 Jun
- £94-£115
ATW Stewartby Lake Standard Triathlon
Located at the Stewartby Sailing Club this venue is perfect for triathlon and was host to a sold-out GB team qualifier event in 2023, with probably the fastest bike leg in the country!
- 1500 m lake swimming
- 37 km road cycling
- 10 km road running

- Sun 22 Jun
- £78.99-£249.99
Cardiff Triathlon & Duathlon
Situated in the renowned Cardiff Bay, this event stands out as a truly memorable city race. The event village is on Roald Dahl Plass in front of the Wales Millenium Centre.
- Super sprint triathlon
- Sprint triathlon
- Olympic triathlon 2
- Half Ironman
- Sprint duathlon

- Sun 29 Jun
- £79
English Riviera Triathlon | Standard
Start with a great sea swim in warm waters then on to the bikes for a closed road and flat bike leg. Finally there's a run with views of the sea. Torre Abbey Sands has excellent water quality.
- 1500 m sea swimming
- 38.5 km road cycling
- 10 km trail running

- Sun 6 Jul
- £85
ATW Bristol Triathlon | Standard Triathlon
ATW presents the Bristol Triathlon, one of the UK's most-popular 'closed-road' triathlon events, in a vibrant city known for its culture, creativity and green spaces.
- 1500 m lake swimming
- 40 km road cycling
- 10 km road running

- Sun 6 Jul
- £94-£129
Croyde Ocean Olympic Triathlon
This Olympic Distance Triathlon was one of 220 Triathlons 'Top 21 must-do' triathlon challenges for 2022, and shortlisted for best triathlon in the UK for 2020! Stunning and savage.
- 1.5 km sea swimming
- 37 km road cycling
- 12 km trail running

- Sun 6 Jul
- £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.
- 1500 m river swimming
- 45 km road cycling
- 10 km road running

- Sun 13 Jul
- £99-£120
Dorney Standard 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.
- 1500 m lake swimming
- 40 km road cycling
- 10 km road running

- Sun 13 Jul
- £80-£95
Ripon Triathlon Festival | Standard Triathlon
One of the most popular distances within the sport of triathlon, catering to both amateur and professional athletes, striking a balance between speed and endurance.
- 1.5 km lake swimming
- 40 km road cycling
- 10 km road running

- 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.
- 1500 m lake swimming
- 69.2 km mountain biking
- 8.4 km multi terrain running

- 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.
- 1500 km lake swimming
- 40 km road cycling
- 10 km road running

- 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.
- 1500 m river swimming
- 45 km road cycling
- 10 km road running

- 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.
- 1.5 km lake swimming
- 59 km road cycling
- 15 km trail running

- Sat 13 Sep
- £94-£115
ATW Grafham Standard Triathlon
Get involved in this Grafham Triathlon, brought to you by the largest triathlon organiser in the UK!
- 1500 m lake swimming
- 38 km road cycling
- 10 km road 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.
- 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.
- 1.5 km lake swimming
- 40 km road cycling
- 10 km trail running

- Sun 21 Sep
- £94-£115
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.
- 1500 m river swimming
- 40 km road cycling
- 10 km trail running

- 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.
- 1500 m lake swimming
- 40 km road cycling
- 10 km road running
Olympic triathlons near you
Select your location for standard distance triathlons in your area.