Relay triathlons

Relay triathlons

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

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

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

Eton Dorney Relay Tris
Olympic venue

Eton Dorney Relay Tris

Feel like Olympians this September as you race traffic-free in teams of three. One swims. One rides. One runs.

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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 19 - Sun 20 Jul
  • £35-£295
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.

  • 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
Swim, bike, run your way from Windsor Castle to Brighton on this unique, non-competitive, point-to-point adventure through the North & South Downs. Fully way-marked (no navigation) and full support.
  • Sat 19 Jul
  • £265-£295
Windsor, Buckinghamshire, UK

Castle To Coast Triathlon

Swim, bike, run your way from Windsor Castle to Brighton on this unique, non-competitive, point-to-point adventure through the North & South Downs. Fully way-marked (no navigation) and full support.

  • 1.2 miles lake swimming
  • 67 miles road cycling + 3550 ft ascent
  • 14 miles trail running + 1512 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.
  • Sun 27 Jul
  • FREE-£120
Windsor, Buckinghamshire, UK

Dorney Triathlon | July

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.

  • Super sprint triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Sprint aquabike
  • Standard aquabike
  • Newcomers
  • Event village
  • Sustainability policy
  • Age 15 & over
  • Events
Awarded the Event of the Year (2021) in the Welsh Triathlon Awards, The Craft Snowman is well known as the toughest multi-terrain triathlon and duathlon in the UK. Plus swims and trail running events.
  • Sat 2 - Sun 3 Aug
  • £31.99-£249.99
Betws-y-Coed, Clwyd, UK

Craft Snowman Triathlon & Duathlon, Snowman Swim & Ogwen Yr Helgi Du Trail Runs

Awarded the Event of the Year (2021) in the Welsh Triathlon Awards, The Craft Snowman is well known as the toughest multi-terrain triathlon and duathlon in the UK. Plus swims and trail running events.

  • Sprint triathlon
  • Olympic triathlon
  • Half Ironman
  • Sprint duathlon
  • 10K run
  • + 5 more races
  • Trees not tees
  • Recycling
  • Newcomers
  • Plastic bottle free
  • Music
  • Event village
  • Event expo
  • Rural
  • Mountains
  • Free venue entry
  • Sustainability policy
  • Public transport links
  • Plastic-free event
  • Age 15 & over
  • Events
Start your triathlon journey with Bishopton Lake, home of the North East Wake Park. This venue offers a great opportunity for beginners to test their grit...
  • Sun 3 Aug
  • £45-£80
Stockton-on-Tees, County Durham, UK

Bishopton Triathlon

Start your triathlon journey with Bishopton Lake, home of the North East Wake Park. This venue offers a great opportunity for beginners to test their grit...

  • Sprint triathlon
  • Olympic triathlon
  • Sprint aquabike
  • Standard aquabike
  • Sprint aquathlon
  • + 1 more race
  • Newcomers
  • Event village
  • Park
  • Age 18 & over
  • Events
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 9 Aug
  • £40-£120
Windsor, Buckinghamshire, UK

Dorney Triathlon | August

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.

  • Super sprint triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Sprint aquabike
  • Standard aquabike
  • + 1 more race
  • Recycling
  • Newcomers
  • Event village
  • Sustainability policy
  • Age 15 & over
  • Events
ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Triathlon! It doesn’t matter if you are an experienced triathlete or this is your very first attempt at swim-bike-run.
  • Sun 17 Aug
  • £78-£99
Peterborough, Northamptonshire, UK

ATW Oundle Sprint Distance Triathlon

ATW is the largest triathlon organiser in the UK and is bringing you the Oundle Triathlon! It doesn’t matter if you are an experienced triathlete or this is your very first attempt at swim-bike-run.

  • 600 m pool swimming
  • 25 km road cycling + 561 ft ascent
  • 5 km trail running
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 6 Sep
  • £240-£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)
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.
  • Sun 7 Sep
  • £99-£120
Penrith, Cumbria, UK

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
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
Escape to the Cairngorms for an adventure triathlon in the scenic waters of Loch Morlich, then mountain biking and trail running in Glenmore Forest. Go Short Fast Durty or Long Hard Durty.
  • Sun 14 Sep
  • £73-£98
Aviemore, Highland, UK

Aviemore Triathlon

Escape to the Cairngorms for an adventure triathlon in the scenic waters of Loch Morlich, then mountain biking and trail running in Glenmore Forest. Go Short Fast Durty or Long Hard Durty.

  • Sprint triathlon
  • Olympic triathlon
  • Recycling
  • Newcomers
  • Event village
  • Sustainability policy
  • Age 15 & over
  • Triathlons
Book Your Spot for the Woking Sprint Triathlon! Join one of the most popular triathlons in the area, where athletes return year after year!
  • Sun 14 Sep
  • £59.50-£74.50
Woking, Surrey, UK

Woking Autumn Triathlon & Junior Aquathlon | Sprint Triathlon

Book Your Spot for the Woking Sprint Triathlon! Join one of the most popular triathlons in the area, 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
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 21 Sep
  • £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
  • Event village
  • Urban
  • Park
  • Rural
  • Free venue entry
  • Age 15 & over
  • Events
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
  • £78-£180
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
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.
  • Sat 27 - Sun 28 Sep
  • £35-£295
Edenbridge, Kent, UK

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
  • Families
  • Newcomers
  • Event village
  • Park
  • Rural
  • Age 9 & over
  • Events
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
  • £58-£120
Windsor, Buckinghamshire, UK

Dorney Triathlon | September

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.

  • Super sprint triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Sprint aquabike
  • Standard aquabike
  • Recycling
  • Newcomers
  • Event village
  • Sustainability policy
  • Age 15 & over
  • Events
An award-winning triathlon on the incredible, unspoilt Hebridean Island of Kerrera, off Scotland's stunning west coast with the accessible marina and its facilities as the main hub.
  • Sun 28 Sep
  • £73-£98
Oban, Argyll and Bute, UK

Craggy Island Triathlon | Sunday

An award-winning triathlon on the incredible, unspoilt Hebridean Island of Kerrera, off Scotland's stunning west coast with the accessible marina and its facilities as the main hub.

  • 600 m sea swimming
  • 16 km mountain biking + 362 m ascent
  • 8.5 km trail running + 234 m ascent
The Torbay Triathlon Weekend is delighted to host the Devon and Somerset Fire Service Multisport Championships! Start with a 5K, followed by a team relay. One swims, one cycles, one runs.
  • Sat 4 Oct
  • £18-£48
Paignton, Devon, UK

DSFRS Multisport Championships

The Torbay Triathlon Weekend is delighted to host the Devon and Somerset Fire Service Multisport Championships! Start with a 5K, followed by a team relay. One swims, one cycles, one runs.

  • 5K run
  • Sprint triathlon
  • Relay triathlon
  • Newcomers
  • Event village
  • Park
  • Sustainability policy
  • Age 15 & over
  • Events
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 4 Oct
  • £240-£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!

  • 1.5 km lake swimming
  • 53 km mountain biking
  • 18.5 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)
An award-winning coastal triathlon set among the safety of the sandy bay, featuring a fast bike route with Exmoor as the backdrop and a promenade run with beach finale!
  • Sun 12 Oct
  • £55
Minehead, Somerset, UK

Minehead Triathlon

An award-winning coastal triathlon set among the safety of the sandy bay, featuring a fast bike route with Exmoor as the backdrop and a promenade run with beach finale!

  • 750 m sea swimming
  • 20 km road cycling
  • 5 km multi terrain running
  • Families
  • Newcomers
  • Chip timing
  • Enter online
  • Event village
  • Coast
  • Age 14 & over
  • Sprint triathlons
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
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
  • £195-£225
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)
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-£102.50
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
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
A choice of multi-sports events including triathlon, relay triathlon and aquabike at a stunning watersports venue with immaculate water quality, scenic routes, a custom designed medal and much more.
  • Sun 24 May 2026
  • £63-£135
Bedford, Bedfordshire, UK

ATW Box End Triathlon

A choice of multi-sports events including triathlon, relay triathlon and aquabike at a stunning watersports venue with immaculate water quality, scenic routes, a custom designed medal and much 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
  • £155-£175
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

Relay triathlons near you

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