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 15 Jun
- £65
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
- £99-£120
ATW Stewartby Lake Standard Triathlon
Located at the Stewartby Sailing Club this venue is perfect for a Standard 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
- £83.99-£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 22 Jun
- £125-£165
Cholmondeley Castle | Olympic Triathlon
Get active in the beautiful grounds and surrounding area of stunning Cheshire in the discipline of your choice! Bring your friends and celebrate completing your challenge in the festival village.
- 1.5 km lake swimming
- 42 km road cycling
- 10.5 km road running

- Sun 29 Jun
- £75
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
- 40 km road cycling
- 10 km road running

- Sun 6 Jul
- £105-£125
ATW Bristol Triathlon | Standard Triathlon
ATW presents the Bristol Standard 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
- 34 km road cycling
- 10 km road running

- Sun 6 Jul
- £99-£120
ATW St Neots Standard Triathlon | Race 2
Stunning riverside venue! Swim in the beautiful River Ouse, cycle through scenic villages and run around Riverside Park in a Standard Triathlon.
- 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 20 Jul
- £125-£165
Belvoir Castle | Olympic Triathlon
A jewel in the castle crown! Get active in the beautiful grounds and surrounding area of stunning Leicestershire in an Olympic Triathlon! Celebrate in the festival village afterwards.
- 1.5 km lake swimming
- 45 km road cycling + 957 ft ascent
- 10.5 km road running + 615 ft ascent

- Sun 27 Jul
- £99-£120
Dorney Triathlon | July | 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

- 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
- 69.3 km road cycling + 3753 ft ascent
- 8.7 km multi terrain running + 2276 ft ascent

- 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
- £99-£120
ATW St Neots Standard Triathlon | Race 3
Stunning riverside venue! Swim in the beautiful River Ouse, cycle through scenic villages and run around Riverside Park in a Standard Triathlon.
- 1500 m river swimming
- 45 km road cycling
- 10 km road running

- Sun 31 Aug
- £82
Roadford Lake Triathlon Autumn | Standard
Now twice-yearly due to popularity, the Standard Tri is a superb swimming venue with quiet rolling roads for the bike course and a cracking run too. Plus there's lakeside camping available too.
- 1500 km lake swimming
- 46 km road cycling
- 10 km trail 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
- £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!
- 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
- £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.
- 1500 m river swimming
- 40 km road cycling
- 10 km trail running

- Sat 27 - Sun 28 Sep
- £35-£295
Hever Castle Triathlon and Multisport Festival
Get active in the award-winning grounds and surrounding Kent countryside in the discipline of your choice! Recruit your friends and celebrate completing your challenge in the festival village.
- Half Ironman
- Olympic triathlon
- Sprint triathlon 2
- Super sprint triathlon
- Novice triathlon
- + 17 more races

- 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

- Mon 4 May 2026
- £58-£63
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 17 May 2026
- £82-£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.
- 1500 m lake swimming
- 46 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
Olympic triathlons near you
Select your location for standard distance triathlons in your area.