Relay triathlons

Relay triathlons

Compete in a team to tackle the swim-bike-run format of a triathlon in these relay triathlon races!

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Relay triathlons in the UK

Relay triathlons are a great way to experience the atmosphere of a triathlon without taking on all three legs of the standard event and without the hassle of the transitions. Each team member takes on one of the three legs - the swim, the bike or the run - and leaves the other legs to their team members. Put together your dream team and have a go! Select your location for relay triathlons in your area or scroll down to see events coming up.

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Relay triathlons in 2025/2026

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

Join one of the most popular triathlons, where athletes return year after year!
  • Sun 26 Apr 2026
  • £49.50-£64.50
Woking, Surrey, UK

Woking Spring Triathlon & Junior Aquathlon | Sprint Triathlon

Join one of the most popular triathlons, where athletes return year after year!

  • 400 m pool swimming
  • 20.6 km road cycling + 249 ft ascent
  • 5 km trail running + 75 ft ascent
A classic sprint triathlon with a fresh new energy to bring the triathlon scene back to Lincolnshire! A pool swim with a thrilling and scenic course plus a commemorative medal.
  • Sun 26 Apr 2026
  • £55
Grantham, Lincolnshire, UK

Tridents Grantham Triathlon

A classic sprint triathlon with a fresh new energy to bring the triathlon scene back to Lincolnshire! A pool swim with a thrilling and scenic course plus a commemorative medal.

  • 400 m pool swimming
  • 24 km road cycling + 230 ft ascent
  • 5 km road running + 62 ft ascent
  • Newcomers
  • Enter online
  • Event village
  • Rural
  • Sustainability policy
  • Age 17 & over
  • Sprint triathlons
Take on this multi-activity event as an individual or as a relay, and enjoy the opportunity to race around the unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Sat 2 May 2026
  • £58-£120
Windsor, Buckinghamshire, UK

Dorney Triathlon | May

Take on this multi-activity event as an individual or as a relay, and enjoy the opportunity to race around the unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Super sprint triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Sprint aquabike
  • Standard aquabike
  • Recycling
  • Newcomers
  • Event village
  • Park
  • Sustainability policy
  • Age 15 & over
  • Events
Stunning riverside venue! Swim in the beautiful River Ouse, cycle through scenic villages and run around Riverside Park in a triathlon or aquabike event of your choice.
  • Sun 3 May 2026
  • £55-£117
Saint Neots, Cambridgeshire, UK

ATW St Neots Triathlon | Race 1

Stunning riverside venue! Swim in the beautiful River Ouse, cycle through scenic villages and run around Riverside Park in a triathlon or aquabike event of your choice.

  • Super sprint triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Standard aquabike
  • Newcomers
  • Event village
  • Park
  • Age 15 & over
  • Events
The totally unique ROC format, from Abersoch Bay to the top of Wales’ highest mountain and back. Swim, Bike, Mountain, Bike, Run; THE ROC WALES is triathlon - tough and redefined.
  • Sat 9 May 2026
  • £250-£270
Pwllheli, Gwynedd, UK

THE ROC WALES

The totally unique ROC format, from Abersoch Bay to the top of Wales’ highest mountain and back. Swim, Bike, Mountain, Bike, Run; THE ROC WALES is triathlon - tough and redefined.

  • 1.5 km sea swimming
  • 100 km road cycling
  • 13 km multi terrain running + 3330 ft ascent
  • Recycling
  • Plastic bottle free
  • Entertainment
  • Music
  • Chip timing
  • Enter online
  • Hilly
  • Mountainous
  • Event village
  • Event expo
  • Coast
  • Mountains
  • Sustainability policy
  • Plastic-free event
  • Age 18 & over
  • Half Ironman (middle distance)
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.
  • Sat 16 May 2026
  • £78-£178
Maldon, Essex, UK

ATW Big East & Maldon 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.

  • Sprint triathlon
  • Olympic triathlon
  • Standard aquabike
  • Half Ironman
  • Middle aquabike
  • Newcomers
  • Event village
  • Park
  • Age 15 & over
  • Events
One of the most thrilling triathlons in the country on a super-exciting route with challenging ascents, descents and open roads, narrow in parts. Includes Full Weekend Festival Ticket in the price!
  • Sat 16 May 2026
  • £42.50-£107.50
Keswick, Cumbria, UK

Keswick Mountain Festival | Sprint Triathlon

One of the most thrilling triathlons in the country on a super-exciting route with challenging ascents, descents and open roads, narrow in parts. Includes Full Weekend Festival Ticket in the price!

  • 400 m lake swimming
  • 18 km road cycling
  • 5 km trail running
  • Newcomers
  • Chip timing
  • Enter online
  • Hilly
  • Event village
  • Age 15 & over
  • Sprint triathlons
Triathlon and swim events at Roadford Lake, offering a range of distances to suit all ability levels in a safe environment, with camping options to enjoy the area after your event.
  • Sun 17 May 2026
  • £68-£135
Lifton, Devon, UK

Roadford Lake Triathlon

Triathlon and swim events at Roadford Lake, offering a range of distances to suit all ability levels in a safe environment, with camping options to enjoy the area after your event.

  • Sprint triathlon
  • Olympic triathlon
  • Half Ironman
  • Families
  • Trees not tees
  • Recycling
  • Newcomers
  • Event village
  • Rural
  • Sustainability policy
  • Plastic-free event
  • Age 15 & over
  • Triathlons
Experience a choice of multi-sport events — triathlon, relay triathlon and aquabike — at a stunning watersports venue with pristine water, scenic routes, a custom medal and more.
  • Sun 24 May 2026
  • £65-£137
Bedford, Bedfordshire, UK

ATW Box End Triathlon

Experience a choice of multi-sport events — triathlon, relay triathlon and aquabike — at a stunning watersports venue with pristine water, scenic routes, a custom medal and more.

  • Sprint triathlon
  • Sprint aquabike
  • Olympic triathlon
  • Standard aquabike
  • Half Ironman
  • + 1 more race
  • Newcomers
  • Event village
  • Park
  • Age 15 & over
  • Events
Take on a superb middle distance triathlon at the fantastic Grafham Water. Suitable for all abilites, with a challenging, but achievable course, and custom medal at the finish line.
  • Sun 7 Jun 2026
  • £160-£180
Huntingdon, Cambridgeshire, UK

ATW Grafman Middle Distance Triathlon

Take on a superb middle distance triathlon at the fantastic Grafham Water. Suitable for all abilites, with a challenging, but achievable course, and custom medal at the finish line.

  • 1900 m lake swimming
  • 90 km road cycling + 1680 ft ascent
  • 21 km multi terrain running + 0 ft ascent
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
  • £70-£90
Dartmouth, Devon, UK

Dartmouth Triathlon | Sprint

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!

  • 750 m sea swimming
  • 20 km road cycling + 1067 ft ascent
  • 5 km road running + 228 ft ascent
Whichever distance you choose, this 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
  • £70-£135
Weymouth, Dorset, UK

Weymouth WMD Triathlon

Whichever distance you choose, this 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.

  • Half Ironman
  • Olympic triathlon
  • Sprint triathlon
  • Newcomers
  • Event village
  • Coast
  • Age 18 & over
  • Triathlons
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.
  • Sat 20 - Sun 21 Jun 2026
  • £28-£245
  • 20% off
Malpas, Cheshire, UK

Cholmondeley Castle Triathlon and Multisport Festival

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.

20% off

  • Kids triathlon 5
  • Novice triathlon
  • Super sprint triathlon
  • Sprint triathlon 2
  • Olympic triathlon
  • + 14 more races
  • Families
  • Newcomers
  • Entertainment
  • Music
  • Event village
  • Park
  • Rural
  • Age 9 & over
  • Events
Dive into the ATW Stewartby Lake Triathlon and Aquabike – a flat, fast and friendly race offering stunning lake views, smooth roads, and surefire PB potential.
  • Sun 21 Jun 2026
  • £64-£117
Bedford, Bedfordshire, UK

ATW Stewartby Lake Triathlon & Aquabike

Dive into the ATW Stewartby Lake Triathlon and Aquabike – a flat, fast and friendly race offering stunning lake views, smooth roads, and surefire PB potential.

  • Sprint triathlon
  • Olympic triathlon
  • Sprint aquabike
  • Standard aquabike
  • Recycling
  • Newcomers
  • Plastic bottle free
  • Event village
  • Park
  • Sustainability policy
  • Age 15 & over
  • Events
Take on an exciting coastal triathlon in Southend, featuring a sea swim, fast seafront cycle, and scenic run with fantastic crowd support all the way.
  • Sun 21 Jun 2026
  • £75-£110
Southend-on-Sea, Essex, UK

Southend Triathlon

Take on an exciting coastal triathlon in Southend, featuring a sea swim, fast seafront cycle, and scenic run with fantastic crowd support all the way.

  • Sprint triathlon
  • Olympic triathlon
  • Relay triathlon
  • Standard aquabike
  • Newcomers
  • Event village
  • Coast
  • Age 18 & over
  • Events
Get ready for one of the UK’s most exciting triathlon events of the year!
  • Sun 5 Jul 2026
  • £65-£160
Bedford, Bedfordshire, UK

ATW Odyssey At Box End Triathlon

Get ready for one of the UK’s most exciting triathlon events of the year!

  • Sprint triathlon
  • Olympic triathlon
  • Half Ironman
  • Sprint aquabike
  • Standard aquabike
  • + 1 more race
  • Newcomers
  • Event village
  • Park
  • Age 15 & over
  • Events
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 5 Jul 2026
  • £64
Torquay, Devon, UK

English Riviera Triathlon | Sprint

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.

  • 750 m sea swimming
  • 20 km road cycling + 656 ft ascent
  • 5 km road running + 135 ft ascent
Swim, bike, and run through an iconic city backdrop with a flat, fast course and incredible atmosphere — one of the UK's most-popular 'closed-road' Standard triathlons.
  • Sun 12 Jul 2026
  • £85-£105
Bristol, Somerset, UK

ATW Bristol Standard Triathlon

Swim, bike, and run through an iconic city backdrop with a flat, fast course and incredible atmosphere — one of the UK's most-popular 'closed-road' Standard triathlons.

  • 1500 m lake swimming
  • 42 km road cycling + 144 ft ascent
  • 10 km road running + 174 ft ascent
A jewel in the castle crown! Get active in the beautiful grounds and surrounding area of stunning Leicestershire in the discipline of your choice! Celebrate in the festival village afterwards.
  • Sat 18 - Sun 19 Jul 2026
  • £28-£245
  • 20% off
Grantham, Leicestershire, UK

Belvoir Castle Triathlon and Multisport Festival

A jewel in the castle crown! Get active in the beautiful grounds and surrounding area of stunning Leicestershire in the discipline of your choice! Celebrate in the festival village afterwards.

20% off

  • Kids triathlon 4
  • Super sprint triathlon
  • Sprint triathlon 2
  • Olympic triathlon
  • Half Ironman
  • + 14 more races
  • Families
  • Newcomers
  • Event village
  • Rural
  • Age 9 & over
  • Events
A one-of-a-kind triathlon adventure from castle to coast – swim, bike, run and soak up the best of the North and South Downs, fully supported all the way, no navigation needed!
  • Sat 18 Jul 2026
  • £260-£290
  • Early bird
Windsor, Buckinghamshire, UK

Castle To Coast Triathlon

A one-of-a-kind triathlon adventure from castle to coast – swim, bike, run and soak up the best of the North and South Downs, fully supported all the way, no navigation needed!

Early bird on now

  • 1.2 miles lake swimming
  • 66 miles road cycling + 3300 ft ascent
  • 14 miles trail running + 1300 ft ascent
Complete your own Odyssey on a journey of self-discovery in the Cambridgeshire countryside featuring a swim in the River Ouse, a scenic ride and a run around the beautiful town of St Neots.
  • Sat 8 Aug 2026
  • £130-£270
  • Early bird
St. Neots, Cambridgeshire, UK

ATW Odyssey Triathlon

Complete your own Odyssey on a journey of self-discovery in the Cambridgeshire countryside featuring a swim in the River Ouse, a scenic ride and a run around the beautiful town of St Neots.

Early bird on now

  • Ironman
  • Half Ironman
  • Families
  • Recycling
  • Entertainment
  • Music
  • Event village
  • Park
  • Rural
  • Sustainability policy
  • Age 19 & over
  • Triathlons
Be part of a UK first. This isn’t just another triathlon—it’s the first event of its kind where you decide the distance, from sprint to full, and race your way.
  • Sat 8 Aug 2026
  • £56-£275
St. Neots, Cambridgeshire, UK

ATW First To Full Triathlon Festival

Be part of a UK first. This isn’t just another triathlon—it’s the first event of its kind where you decide the distance, from sprint to full, and race your way.

  • Sprint triathlon
  • Olympic triathlon
  • Half Ironman
  • Ironman
  • Sprint aquabike
  • + 4 more races
  • Newcomers
  • Event village
  • Park
  • Age 15 & over
  • Events
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
Face up to the mountain in one of Europe's most inspiring locations. From Windermere to Coniston to summit England's highest mountain, if you love a tough and rewarding challenge - you'll thrive.
  • Sat 5 Sep 2026
  • £215-£260
Ulverston, Cumbria, UK

THE ROC ENGLAND

Face up to the mountain in one of Europe's most inspiring locations. From Windermere to Coniston to summit England's highest mountain, if you love a tough and rewarding challenge - you'll thrive.

  • 1.5 km lake swimming
  • 92 km road cycling
  • 18.5 km multi terrain running
  • Recycling
  • Plastic bottle free
  • Music
  • Chip timing
  • Enter online
  • Mountainous
  • Event village
  • Rural
  • Mountains
  • Sustainability policy
  • Plastic-free event
  • Age 18 & over
  • Half Ironman (middle distance)
The Olympic venue, Eton Dorney, offers pan-flat, traffic-free roads and a beautiful clear lake for all levels of triathletes and swimmers to enjoy in an exclusive setting.
  • Sun 20 Sep 2026
  • £30-£97
Windsor, Buckinghamshire, UK

Eton Dorney Triathlon & Swims

The Olympic venue, Eton Dorney, offers pan-flat, traffic-free roads and a beautiful clear lake for all levels of triathletes and swimmers to enjoy in an exclusive setting.

  • Super sprint triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Lake swim 4
  • Families
  • Recycling
  • Newcomers
  • Dogs allowed at venue
  • Event village
  • Urban
  • Park
  • Rural
  • Free venue entry
  • Age 15 & over
  • Events
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
THE ROC takes in the Highlands. Kinlochleven to the summit of Ben Nevis and back, including a Loch swim, stunning mountain/gravel bike sections and the UK's highest mountain!
  • Sat 3 Oct 2026
  • £215-£260
Kinlochleven, Highland, UK

THE ROC SCOTLAND

THE ROC takes in the Highlands. Kinlochleven to the summit of Ben Nevis and back, including a Loch swim, stunning mountain/gravel bike sections and the UK's highest mountain!

  • 1 km lake swimming
  • 52 km mountain biking
  • 18 km multi terrain running
  • Recycling
  • Plastic bottle free
  • Music
  • Chip timing
  • Enter online
  • Hilly
  • Mountainous
  • Event village
  • Rural
  • Mountains
  • Sustainability policy
  • Plastic-free event
  • Age 18 & over
  • Half Ironman (middle distance)

Relay triathlons near you

Select your location for relay triathlons suitable for teams in your area.

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