Olympic triathlons

Olympic triathlons

Standard (aka Olympic) distance triathlon events | 1.5km swim + 40km bike + 10km run

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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 2025/2026

Featured events are listed below - select a month/region or the map view to see all events.

Eton Dorney Triathlons
Olympic venue

Eton Dorney Triathlons

Feel like an Olympian this September as you race traffic-free in the idyllic grounds with smooth tarmac & crystal clear lake.

Take a look
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!
  • Sat 13 Sep
  • £99-£120
Huntingdon, Cambridgeshire, UK

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 + 748 ft ascent
  • 10 km road running
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!
  • Sat 13 Sep
  • £70-£88
York, East Yorkshire, UK

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!

  • 1500 km lake swimming
  • 40 km road cycling + 146 ft ascent
  • 10 km trail running
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.
  • Sun 14 Sep
  • £83-£98
Aviemore, Highland, UK

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
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.
  • Sun 21 Sep
  • £82-£97
Windsor, Buckinghamshire, UK

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
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.
  • Sun 21 Sep
  • £99-£120
Maldon, Essex, UK

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 + 479 ft ascent
  • 10 km trail running + 86 ft ascent
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.
  • Sat 27 Sep
  • £99-£120
Windsor, Buckinghamshire, UK

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.

  • 1500 m lake swimming
  • 40 km road cycling
  • 10 km road running
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!
  • Sun 28 Sep
  • £125-£165
Edenbridge, Kent, UK

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!

  • 1.5 km lake swimming
  • 40 km road cycling
  • 10 km road running
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.
  • Sat 2 May 2026
  • £99-£120
Windsor, Buckinghamshire, UK

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
Stunning riverside venue! Swim in the beautiful River Ouse, cycle through scenic villages and run around Riverside Park in a Standard Distance Triathlon.
  • Sun 3 May 2026
  • £94-£115
Saint Neots, Cambridgeshire, UK

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 in a Standard Distance Triathlon.

  • 1500 m river swimming
  • 45 km road cycling + 771 ft ascent
  • 10 km road running
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!
  • Mon 4 May 2026
  • £58-£63
Tavistock, Devon, UK

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 + 1726 ft ascent
  • 10 km road running + 652 ft ascent
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.
  • Sun 17 May 2026
  • £82-£84
Lifton, Devon, UK

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 + 4245 ft ascent
  • 10 km road running + 1644 ft ascent
Stunning watersports venue with immaculate water quality, scenic run route, custom designed medal plus team relay option.
  • Sun 24 May 2026
  • £94-£115
Bedford, Bedfordshire, UK

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 + 837 ft ascent
  • 10 km road running + 170 ft ascent
Race through the beautiful grounds and surrounding area of stunning South Galway in a triathlon for a range of levels then celebrate with friends and family in the festival village.
  • Sun 24 May 2026
  • £100-£125
Gort, Ireland

Lough Cutra Castle | Olympic Triathlon

Race through the beautiful grounds and surrounding area of stunning South Galway in a triathlon for a range of levels then celebrate with friends and family in the festival village.

  • 1.5 km lake swimming
  • 40 km road cycling
  • 10 km road running
Race through the beautiful grounds and surrounding area of the stunning Château de Chantilly in an Olympic Triathlon then celebrate with friends and family in the festival village.
  • Sun 7 Jun 2026
  • €100-€125
Chantilly, France

Chateau de Chantilly | Olympic Triathlon

Race through the beautiful grounds and surrounding area of the stunning Château de Chantilly in an Olympic Triathlon then celebrate with friends and family in the festival village.

  • 1.5 km lake swimming
  • 40 km road cycling + 414 ft ascent
  • 10.5 km road running
Swim in the clear waters of Blackpool Sands, then take a scenic coastal bike route featuring Devon's flattest road, then run by a stream. Plus chance to camp on the beach!
  • Sun 7 Jun 2026
  • £85
Dartmouth, Devon, UK

Dartmouth Triathlon | Standard

Swim in the clear waters of Blackpool Sands, then take a scenic coastal bike route featuring Devon's flattest road, then run by a stream. Plus chance to camp on the beach!

  • 1500 m sea swimming
  • 40 km road cycling + 2134 ft ascent
  • 10 km road running + 456 ft ascent
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.
  • Sun 14 Jun 2026
  • £80
Weymouth, Dorset, UK

Weymouth WMD Triathlon | Weymouth 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.

  • 1500 m sea swimming
  • 40 km road cycling + 1040 ft ascent
  • 10 km multi terrain running + 132 ft ascent
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.
  • Sun 21 Jun 2026
  • £100-£125
Malpas, Cheshire, UK

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
Fast, exciting, spectator-friendly racing in the centre of Torquay! Swim from the sheltered Torre Abbey Sands beach, ride a fast and flattish closed-road circuit and run  by the sea.
  • Sun 28 Jun 2026
  • £75
Torquay, Devon, UK

English Riviera Triathlon | Standard

Fast, exciting, spectator-friendly racing in the centre of Torquay! Swim from the sheltered Torre Abbey Sands beach, ride a fast and flattish closed-road circuit and run by the sea.

  • 1500 m sea swimming
  • 40 km road cycling + 1312 ft ascent
  • 10 km road running + 250 ft ascent
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.
  • Sun 19 Jul 2026
  • £100-£125
Grantham, Leicestershire, UK

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
Stunning riverside venue! Swim in the beautiful River Ouse, cycle through scenic villages and run around Riverside Park in a Standard Triathlon.
  • Sat 8 Aug 2026
  • £94-£115
St. Neots, Cambridgeshire, UK

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 + 712 ft ascent
  • 10 km road running + 0 ft ascent
Stunning riverside venue! Swim in the beautiful River Ouse, cycle through scenic villages and run around Riverside Park in a Standard Triathlon.
  • Sun 20 Sep 2026
  • £94-£115
Saint Neots, Cambridgeshire, UK

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 + 712 ft ascent
  • 10 km road running + 0 ft ascent

Olympic triathlons near you

Select your location for standard distance triathlons in your area.

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