Duathlon events calendar

Duathlon events calendar

Run, bike, then run again - a good test for your legs but leave your swimming goggles at home!

211 Duathlons in the UK

With a variety of road and off-road events, ranging from super sprint to long distance, duathlons are similar to triathlons but with the swimming leg replaced by a run to give a run-bike-run format. Select your location to find duathlons in your area, read more about the distances below or scroll down for the UK's biggest events.

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Duathlon distances

Find out more about common duathlon event distances below to help find your perfect event.

Super sprint duathlons

Super sprint duathlons

Short events with distances up to 2.5km run, 10km cycle and another 2.5km run - perfect for beginners!

Super sprints
Sprint duathlons

Sprint duathlons

Slightly longer format events with distances up to around 5km run, 20km cycle and final 2.5km run.

Sprints
Standard duathlons

Standard duathlons

Distances vary a lot between road and off-road events but expect anything up to a 10km run, 40km cycle and 5km run.

Standard distance
Middle duathlons

Middle duathlons

A serious test of stamina with up to a 10km run, 60km cycle and another 10km run to finish!

Middle distance
Long duathlons

Long duathlons

The ultimate test in the run-bike-run format with up to a 10km run, 150km cycle and a 30km run.

Long distance
Kids duathlons

Kids duathlons

Find junior duathlon races right here, all staged on safe, traffic-free courses.

Kids duathlons
The beginner's guide to duathlons
  • 10 mins read
  • 19 Oct 2022
First steps

The beginner's guide to duathlons

Getting started in run-bike-runs is easier than you might think!

Duathlons in 2024

Featured events are listed below - select your region to see all events.

The flat terrain of the Torbay Velodrome offers a range of Duathlon distances, catering to all ages and abilities in a safe, supported and inclusive manner, with a medal and donut at the finish line!
  • Sun 24 Mar
  • £17-£44
Paignton, Devon, UK

Donut Duathlon Spring

The flat terrain of the Torbay Velodrome offers a range of Duathlon distances, catering to all ages and abilities in a safe, supported and inclusive manner, with a medal and donut at the finish line!

  • Sprint duathlon
  • Super sprint duathlon
  • Kids duathlon 4
A weekend of duathlon and road races for juniors and adults, based around the traffic-free Darley Moor race track - an ideal venue to try out a dual-disciplined sport or run a speedy race.
  • Sat 25 - Mon 27 May
  • £10-£37.30
Ashbourne, Derbyshire, UK

Darley Moor May Weekend

A weekend of duathlon and road races for juniors and adults, based around the traffic-free Darley Moor race track - an ideal venue to try out a dual-disciplined sport or run a speedy race.

  • Kids duathlon 5
  • Sprint duathlon
  • 5K run 2
Race through the beautiful grounds and surrounding area of stunning South Galway on an event of your choice from starter to elite then celebrate with friends and family in the festival village.
  • Sat 25 - Sun 26 May
  • £26-£295
Gort, Ireland

Lough Cutra Castle Triathlon and Multisport Festival

Race through the beautiful grounds and surrounding area of stunning South Galway on an event of your choice from starter to elite then celebrate with friends and family in the festival village.

  • Sprint triathlon 3
  • Super sprint triathlon
  • Novice triathlon
  • Sprint duathlon
  • Sprint aquabike
  • + 17 more races
Taking place across the scenic Thames Valley area. Swim the river, cycle the hilly open roads, or run the flat Thames path – with a selection of activities over grass, tarmac, and trail.
  • Sun 26 May
  • £20-£75
Marlow, Buckinghamshire, UK

The One on the River | Marlow

Taking place across the scenic Thames Valley area. Swim the river, cycle the hilly open roads, or run the flat Thames path – with a selection of activities over grass, tarmac, and trail.

  • Super sprint triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Super sprint duathlon
  • Sprint duathlon
  • + 10 more races
Race through the Grand Canal and the historic forest and town of Chantilly on an event of your choice from starter to elite then celebrate with friends and family in the festival village.
  • Sat 8 - Sun 9 Jun
  • £28-£295
Chantilly, France

Chateau de Chantilly Triathlon and Multisport Festival

Race through the Grand Canal and the historic forest and town of Chantilly on an event of your choice from starter to elite then celebrate with friends and family in the festival village.

  • Half Ironman
  • Olympic triathlon
  • Sprint triathlon 2
  • Super sprint triathlon
  • Novice triathlon
  • + 10 more races
Set at the spectacular, flat, and smooth-surfaced Dorney Lake near Windsor, this multi-sport event is for the ones that enjoy being by the water and offers a selection of activities for all levels.
  • Sun 16 Jun
  • £23-£75
Windsor, Buckinghamshire, UK

The One for the Planet powered by Climategames

Set at the spectacular, flat, and smooth-surfaced Dorney Lake near Windsor, this multi-sport event is for the ones that enjoy being by the water and offers a selection of activities for all levels.

  • Super sprint triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Super sprint duathlon
  • Sprint duathlon
  • + 13 more races
Race through the beautiful grounds of the Cholmondeley Castle estate on an event of your choice from starter to elite then celebrate with friends and family in the festival village.
  • Sat 22 - Sun 23 Jun
  • £28-£295
Malpas, Cheshire, UK

Cholmondeley Castle Triathlon and Multisport Festival

Race through the beautiful grounds of the Cholmondeley Castle estate on an event of your choice from starter to elite then celebrate with friends and family in the festival village.

  • Relay triathlon 2
  • Kids triathlon 4
  • Novice triathlon
  • Super sprint triathlon
  • Sprint triathlon 2
  • + 15 more races
Taking place across the scenic Thames Valley area. Swim the river, cycle the hilly open roads, or run the flat Thames path – with a selection of activities over grass, tarmac, and trail.
  • Sun 14 Jul
  • £25-£110
Marlow, Buckinghamshire, UK

The One on the River | Marlow

Taking place across the scenic Thames Valley area. Swim the river, cycle the hilly open roads, or run the flat Thames path – with a selection of activities over grass, tarmac, and trail.

  • Sprint triathlon
  • Olympic triathlon
  • Half Ironman
  • Sprint duathlon
  • Standard duathlon
  • + 10 more races
Race through the beautiful grounds and surrounding area of stunning Leicestershire on an event of your choice from starter to elite then celebrate with friends and family in the festival village.
  • Sat 27 - Sun 28 Jul
  • £28-£295
Grantham, Leicestershire, UK

Belvoir Castle Triathlon and Multisport Festival

Race through the beautiful grounds and surrounding area of stunning Leicestershire on an event of your choice from starter to elite then celebrate with friends and family in the festival village.

  • Kids triathlon 4
  • Novice triathlon
  • Super sprint triathlon
  • Sprint triathlon 2
  • Olympic triathlon
  • + 14 more races
A weekend of duathlon and road races for juniors and adults, based around the traffic-free Darley Moor race track - an ideal venue to try out a dual-disciplined sport.
  • Sat 14 - Sun 15 Sep
  • £11.20-£37.30
Ashbourne, Derbyshire, UK

Darley Moor September Weekend

A weekend of duathlon and road races for juniors and adults, based around the traffic-free Darley Moor race track - an ideal venue to try out a dual-disciplined sport.

  • Kids duathlon 5
  • Sprint duathlon
Race through the beautiful grounds and surrounding area of Hever Castle on an event of your choice from starter to elite then celebrate with friends and family in the festival village.
  • Sat 28 - Sun 29 Sep
  • £28-£295
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival

Race through the beautiful grounds and surrounding area of Hever Castle on an event of your choice from starter to elite then celebrate with friends and family in the festival village.

  • Half Ironman
  • Olympic triathlon
  • Sprint triathlon 2
  • Super sprint triathlon
  • Novice triathlon
  • + 16 more races
Britain's Most Beautiful Marathon returns complete with trail runs, a gravel duathlon and junior fun runs, all enjoying the stunning backdrop of Kielder Water and warm northern spirit.
  • Sat 5 - Sun 6 Oct
  • £8-£78
Hexham, Northumberland, UK

Kielder Marathon Weekend

Britain's Most Beautiful Marathon returns complete with trail runs, a gravel duathlon and junior fun runs, all enjoying the stunning backdrop of Kielder Water and warm northern spirit.

  • Standard duathlon
  • 10K run
  • Marathon
  • Half marathon
  • Fun run 2
Sprint and Standard distance duathlons at Woodbury Common offering mixed terrain running and enjoyable cycling on rolling roads. Chip timed and BTF affiliated.
  • Sun 3 Nov
  • £36-£55.12
Lifton, Devon, UK

Devon Duathlon Autumn

Sprint and Standard distance duathlons at Woodbury Common offering mixed terrain running and enjoyable cycling on rolling roads. Chip timed and BTF affiliated.

  • Sprint duathlon
  • Standard duathlon
  • Sun 25 Feb
  • £45-£50
Milford Haven, Pembrokeshire, UK

Pembrokeshire Duathlon

A sprint distance duathlon (5k run, 21k bike, 2.5k run) set on the banks of the Milford Haven Waterway at Brunel Quay, Neyland.

  • 5 km road running
  • 21 km road cycling
  • 2.5 km road running
  • Sun 25 Feb
  • £25-£45
Holt, Worcestershire, UK

The Lakeside Launcher Duathlon

Back in 2024. The Lakeside Launcher Duathlon is the perfect way to start your duathlon season

  • 4.5 km trail running
  • 24 km road cycling
  • 2.2 km trail running
  • Sun 3 Mar
  • £30-£38
Pershore, Worcestershire, UK

Bishampton Duathlon

Bishampton Duathlon, with a very nice and quiet route & a great cafe on site.

  • Super sprint duathlon
  • Standard duathlon
  • Sun 10 Mar
  • £45-£85
Windsor, Buckinghamshire, UK

Dorney Lake Duathlon

Take on a Sprint or Standard distance and take the opportunity to race around this unique and inspiring Olympic venue!!

  • Super sprint duathlon
  • Sprint duathlon
  • Standard duathlon
  • Sun 10 Mar
  • £45-£90
Bolton, Lancashire, UK

Firefighters Duathlon

The EPIC Fire Fighters Duathlon is a unique event which takes place in conjunction with Greater Manchester Fire and Rescue.

  • 4 miles trail running
  • 25 miles road cycling
  • 4 miles trail running
  • Sun 10 Mar
  • £50-£58
Chippenham, Wiltshire, UK

Total Guide Chilly 'Draft-Legal' Duathlon

DB Max is delighted to announce that the Total Guide Chilly 'Draft-Legal' Duathlon,

  • 5 km road running
  • 21 km road cycling
  • 3 km road running
  • Sun 10 Mar
  • £25
Lydney, Gloucestershire, UK

Forest Beast Duathlon

A Fantastic Duathlon starting based at Taurus Crafts and with a run through private estate.

  • 5 km road running
  • 38 km road cycling
  • 5 km road running
  • Sun 17 Mar
  • £7.50-£10
Brandon, Suffolk, UK

Can But Tri Junior Duathlon Series - Race 4

Get involved in this fun junior run-bike-run event in the safe environment of High Lodge, Thetford Forest.

  • Kids duathlon 3
  • Sun 17 Mar
  • £22-£34
Gravesend, Kent, UK

Spring Duathlon

The Spring Long-distance, Sprint Duathlon and the New TRI-It Duathlon will take place in 2024

  • Super sprint duathlon
  • Sprint duathlon
  • Standard duathlon
  • Sun 17 Mar
  • £19.99-£40
Southsea, Hampshire, UK

St Patrick’s Day Portsmouth Duathlons

A new one day event along a flat and fantastic course with sea views around every turn.

  • Sprint duathlon
  • Standard duathlon
  • Long duathlon
  • Sun 17 Mar
  • £32-£37
Warwick, Warwickshire, UK

Tempo Spring Duathlon

The 4th year of the standard distance duathlon, 4.5 mile run, 17 mile cycle, 3 mile run.

  • 4.5 miles road running
  • 17 miles road cycling
  • 3 miles road running
  • Sun 17 Mar
  • £15
Brandon, Suffolk, UK

Can But Tri Adult Duathlon Series - Event 7

Get involved in this off-road duathlon series held at the stunning location of High Lodge in the heart of Thetford Forest.

  • 2.25 km trail running
  • 7.25 km mountain biking
  • 2.25 km trail running
  • Sat 23 Mar
  • £35-£42
Ambleside, Cumbria, UK

Lake District Duathlons - Grasmere

Wild Deer Events extremely popular annual trip to the Lake District will be in 2024 for the Grasmere Duathlons.

  • Sprint duathlon
  • Standard duathlon
  • Sat 23 Mar
  • £64.95
Mumbles, West Glamorgan, UK

GCS Mumbles Duathlon

The Mumbles Duathlon will take place in Mumbles, Swansea.

  • Super sprint duathlon
  • Sprint duathlon
  • Sun 24 Mar
  • £20-£55
North Berwick, East Lothian, UK

TriWorks East Fortune Duathlon

Fast, Fun and For Everyone...

  • Kids duathlon 4
  • Sprint duathlon
  • Sun 24 Mar
  • £13-£26
Hayes, UK

Spring Family Duathlon - Hillingdon Triathletes

As the first weekend race of the season Hillingdon Triathletes Spring Duathlon is a hugely popular event.

  • Kids duathlon 4
  • Super sprint duathlon
  • Sprint duathlon
  • Sun 24 Mar
  • £29-£55
Sunderland, Tyne and Wear, UK

Sun City Duathlon

Get your season off to a flying start with ever-popular duathlon, a 5k run, 20k bike and 5k run.

  • 5 km road running
  • 20 km road cycling
  • 5 km road running