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.

Ripon Triathlon Festival
The Brownlee Foundation

Ripon Triathlon Festival

A fun and friendly Standard Tri for teams of 2 or 3 of all abilities at a stunning venue.

View event
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 10 May
  • £240-£260
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)
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.
  • Sat 17 - Sun 18 May
  • £68-£140
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
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 17 May
  • £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
  • Newcomers
  • Chip timing
  • Enter online
  • Hilly
  • Event village
  • Age 15 & over
  • Sprint triathlons
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 18 May
  • £73-£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.

  • 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.
  • Sun 25 May
  • £58-£120
Windsor, Buckinghamshire, UK

Dorney Triathlon | May

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.

  • Super sprint triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Sprint aquabike
  • Standard aquabike
  • Recycling
  • Newcomers
  • Event village
  • Sustainability policy
  • 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 1 Jun
  • £165-£186
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 + 1844 ft ascent
  • 21 km multi terrain running + 253 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 7 Jun
  • £58-£120
Windsor, Buckinghamshire, UK

Dorney Triathlon | June

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
Entries closed
The successful Dartmouth Triathlon returns with a stunning sea swim, stunning coastal bike route, out and back run including Devon's flattest road, plus chance to camp on the beach!
  • Sun 8 Jun
  • £59-£81
  • Entries closed
Dartmouth, Devon, UK

Dartmouth Triathlon

The successful Dartmouth Triathlon returns with a stunning sea swim, stunning coastal bike route, out and back run including Devon's flattest road, plus chance to camp on the beach!

  • Olympic triathlon
  • Sprint triathlon
  • Trees not tees
  • Recycling
  • Newcomers
  • Sustainability policy
  • Age 15 & over
  • Triathlons
Located at the Stewartby Sailing Club this venue is perfect for triathlon and aquabike and was host to a sold-out GB team qualifier event in 2023, with probably the fastest bike leg in the country!
  • Sun 15 Jun
  • £62-£115
Bedford, Bedfordshire, UK

ATW Stewartby Lake Triathlon & Aquabike

Located at the Stewartby Sailing Club this venue is perfect for triathlon and aquabike and was host to a sold-out GB team qualifier event in 2023, with probably the fastest bike leg in the country!

  • Sprint triathlon
  • Olympic triathlon
  • Sprint aquabike
  • Standard aquabike
  • Recycling
  • Newcomers
  • Plastic bottle free
  • Event village
  • Park
  • Sustainability policy
  • Age 15 & over
  • Events
Mallory Park Triathlon Extravaganza: A Traffic-Free Triumph! A thrilling and safe circuit nestled in picturesque surroundings, boasting its own self-enclosed swim lake for a Sprint Tri.
  • Sun 29 Jun
  • £78-£98
Kirkby Mallory, Leicestershire, UK

ATW Sprint Triathlon | Mallory Park

Mallory Park Triathlon Extravaganza: A Traffic-Free Triumph! A thrilling and safe circuit nestled in picturesque surroundings, boasting its own self-enclosed swim lake for a Sprint Tri.

  • 750 m lake swimming
  • 20 km road cycling
  • 5 km road running
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 5 Jul
  • £155-£295
Saint 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.

  • Ironman
  • Half Ironman
  • Families
  • Recycling
  • Entertainment
  • Music
  • Event village
  • Park
  • Rural
  • Sustainability policy
  • Age 18 & over
  • Triathlons
ATW presents the Bristol Triathlon, one of the UK's most-popular 'closed-road' triathlon events, in a vibrant city known for its culture, creativity and green spaces.
  • Sun 6 Jul
  • £85
Bristol, Somerset, UK

ATW Bristol Triathlon | Standard Triathlon

ATW presents the Bristol 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
  • 40 km road cycling
  • 10 km road running
A family-friendly event in partnership with the Brownlee Foundation, for triathletes of all skill levels including a Sprint, Standard, Middle distance tri, Swims, Aquabike, Relay and Juniors.
  • Sat 12 - Sun 13 Jul
  • £20-£95
Ripon, North Yorkshire, UK

Ripon Triathlon Festival

A family-friendly event in partnership with the Brownlee Foundation, for triathletes of all skill levels including a Sprint, Standard, Middle distance tri, Swims, Aquabike, Relay and Juniors.

  • Lake swim 4
  • Sprint triathlon
  • Sprint aquabike
  • Standard aquabike
  • Olympic triathlon
  • + 5 more races
  • Families
  • Newcomers
  • Dogs allowed
  • Event village
  • Urban
  • Rural
  • Free venue entry
  • Age 8 & 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.
  • Sun 13 Jul
  • £58-£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
  • Recycling
  • Newcomers
  • Event village
  • Sustainability policy
  • Age 15 & over
  • Events
An amazing celebration weekend of swim-bike-run using the magnificent Marine Lake with the glorious Victorian Clevedon Pier as the backdrop, sea views, promenade and top reviews!
  • Sun 20 Jul
  • £49-£55
Clevedon, Somerset, UK

Clevedon Triathlon

An amazing celebration weekend of swim-bike-run using the magnificent Marine Lake with the glorious Victorian Clevedon Pier as the backdrop, sea views, promenade and top reviews!

  • 750 m lake swimming
  • 20 km road cycling
  • 5 km multi terrain running
  • Newcomers
  • Chip timing
  • Enter online
  • Event village
  • Coast
  • Age 14 & over
  • Sprint triathlons
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
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
  • £73-£95
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
  • 5 km trail running
Taking THE ROC into the Lake District, this is an opportunity to test your resolve and focus in one of the most inspiring locations in Europe. Face up to the mountain.
  • Sat 6 Sep
  • £240-£260
Ulverston, Cumbria, UK

THE ROC ENGLAND

Taking THE ROC into the Lake District, this is an opportunity to test your resolve and focus in one of the most inspiring locations in Europe. Face up to the mountain.

  • 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
Get involved in this Grafham Triathlon, brought to you by the largest triathlon organiser in the UK!
  • Sat 13 Sep
  • £94-£115
Huntingdon, Cambridgeshire, UK

ATW Grafham Standard Triathlon

Get involved in this Grafham Triathlon, brought to you by the largest triathlon organiser in the UK!

  • 1500 m lake swimming
  • 38 km road cycling
  • 10 km road running
Join Aviemore Triathlon in the beautiful Cairngorms 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
  • £73-£98
Aviemore, Highland, UK

Aviemore Triathlon

Join Aviemore Triathlon in the beautiful Cairngorms 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.

  • Sprint triathlon
  • Olympic triathlon
  • Recycling
  • Newcomers
  • Event village
  • Sustainability policy
  • Age 15 & over
  • Triathlons
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
  • £73-£175
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
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
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
  • £49-£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
  • Sun 6 Jul
  • £70-£129
Braunton, Devon, UK

Croyde Ocean Triathlon

Top 21 must-do triathlon challenges! Based at the beautiful, award-winning Putsborough Sands and sold out again last year, this triathlon takes in some of the South West’s most stunning scenery.

  • Sprint triathlon
  • Olympic triathlon
  • Newcomers
  • Dogs allowed
  • Event village
  • Sustainability policy
  • Plastic-free event
  • Age 15 & over
  • Triathlons

Relay triathlons near you

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