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 2024/2025

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

Race through the beautiful grounds of stunning Belvoir Castle in Leicestershire in a triathlon for all levels then celebrate with friends and family in the festival village.
  • Sat 27 Jul
  • £92-£155
Grantham, Leicestershire, UK

Belvoir Castle | Sprint Plus Triathlon

Race through the beautiful grounds of stunning Belvoir Castle in Leicestershire in a triathlon for all levels then celebrate with friends and family in the festival village.

  • 800 m lake swimming
  • 46 km road cycling
  • 8 km road running
Race through the beautiful grounds of the stunning Belvoir Castle in Leicestershire in a sprint triathlon for all levels then celebrate with friends and family in the festival village.
  • Sat 27 Jul
  • £80-£150
Grantham, Leicestershire, UK

Belvoir Castle | Sprint Triathlon

Race through the beautiful grounds of the stunning Belvoir Castle in Leicestershire in a sprint triathlon for all levels then celebrate with friends and family in the festival village.

  • 750 m lake swimming
  • 23 km road cycling
  • 5 km road running
Race through the beautiful grounds of the stunning Belvoir Castle in Leicestershire in a super sprint triathlon for all levels then celebrate with friends and family in the festival village.
  • Sat 27 Jul
  • £76-£145
Grantham, Leicestershire, UK

Belvoir Castle | Super Sprint Triathlon

Race through the beautiful grounds of the stunning Belvoir Castle in Leicestershire in a super sprint triathlon for all levels then celebrate with friends and family in the festival village.

  • 400 m lake swimming
  • 20 km road cycling
  • 4 km road running
Race through the beautiful grounds of Belvoir Castle in a starter triathlon then celebrate with friends and family in the festival village.
  • Sat 27 Jul
  • £64-£120
Grantham, Leicestershire, UK

Belvoir Castle | Starter Triathlon

Race through the beautiful grounds of Belvoir Castle in a starter triathlon then celebrate with friends and family in the festival village.

  • 200 m lake swimming
  • 12 km road cycling
  • 2.5 km road running
Formerly The London Triathlon, this is one of the world’s biggest triathlons where athletes will race through the capital on a landmark-filled route. London is calling!
  • Sun 28 Jul
  • £61.83-£110.24
London, UK

London T100 | Sprint

Formerly The London Triathlon, this is one of the world’s biggest triathlons where athletes will race through the capital on a landmark-filled route. London is calling!

  • 750 m dock swimming
  • 20 km road cycling
  • 5 km road running
Formerly The London Triathlon, this is one of the world’s biggest triathlons where athletes will race through the capital on a landmark-filled route. London is calling!
  • Sun 28 Jul
  • £70.31-£157.94
London, UK

London T100 | Olympic

Formerly The London Triathlon, this is one of the world’s biggest triathlons where athletes will race through the capital on a landmark-filled route. London is calling!

  • 1500 m dock swimming
  • 40 km road cycling
  • 10 km road running
Race through the beautiful grounds of stunning Belvoir Castle out into surrounding Leicestershire in a 'half ironman' distance triathlon then celebrate with friends and family in the festival village.
  • Sun 28 Jul
  • £196-£295
Grantham, Leicestershire, UK

Belvoir Castle | Gauntlet Triathlon

Race through the beautiful grounds of stunning Belvoir Castle out into surrounding Leicestershire in a 'half ironman' distance triathlon then celebrate with friends and family in the festival village.

  • 1.9 km lake swimming
  • 90 km road cycling
  • 21 km road running
Race through the beautiful grounds of stunning Belvoir Castle out into surrounding Leicestershire in an Olympic triathlon for all levels then celebrate with friends and family in the festival village.
  • Sun 28 Jul
  • £100-£165
Grantham, Leicestershire, UK

Belvoir Castle | Olympic Triathlon

Race through the beautiful grounds of stunning Belvoir Castle out into surrounding Leicestershire in an Olympic triathlon for all levels then celebrate with friends and family in the festival village.

  • 1500 m lake swimming
  • 40 km road cycling
  • 10.5 km road running
A stunning venue and magnificent grounds with manicured sports fields, lakes, wildlife and greenery, ideally set up for athletes of all levels with relay option and a custom designed medal.
  • Sun 4 Aug
  • £95-£115
Northwood, Hertfordshire, UK

ATW Hertfordshire & Middlesex Standard Triathlon

A stunning venue and magnificent grounds with manicured sports fields, lakes, wildlife and greenery, ideally set up for athletes of all levels with relay option and a custom designed medal.

  • 1500 m lake swimming
  • 42 km road cycling
  • 10 km trail running
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 1 Sep
  • £95-£111
Penrith, Cumbria, UK

Helvellyn Triathlon | 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
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 15 Sep
  • £76-£96
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
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 15 Sep
  • £66-£86
Aviemore, Highland, UK

Aviemore Triathlon | Short Fast 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.

  • 500 m lake swimming
  • 12 km mountain biking
  • 5 km trail running
Race through the beautiful grounds and surrounding area of the stunning Hever Castle in a sprint plus triathlon then celebrate with friends and family in the festival village.
  • Sat 28 Sep
  • £92-£155
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Sprint Plus Triathlon

Race through the beautiful grounds and surrounding area of the stunning Hever Castle in a sprint plus triathlon then celebrate with friends and family in the festival village.

  • 800 m lake swimming
  • 40 km road cycling
  • 8 km road running
Race through the beautiful grounds of Hever Castle in an event suitable for all levels of experience, then celebrate with friends and family in the festival village.
  • Sat 28 Sep
  • £80-£150
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Sprint Triathlon

Race through the beautiful grounds of Hever Castle in an event suitable for all levels of experience, then celebrate with friends and family in the festival village.

  • 750 m lake swimming
  • 20 km road cycling
  • 5 km road running
Race through the beautiful grounds of Hever Castle in an event ideal for the weaker swimmer, then celebrate with friends and family in the festival village.
  • Sat 28 Sep
  • £76-£145
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Super Sprint Triathlon

Race through the beautiful grounds of Hever Castle in an event ideal for the weaker swimmer, then celebrate with friends and family in the festival village.

  • 400 m lake swimming
  • 20 km road cycling
  • 4 km road running
Race through the beautiful grounds of Hever Castle in a starter triathlon then celebrate with friends and family in the festival village.
  • Sat 28 Sep
  • £64-£120
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Starter Triathlon

Race through the beautiful grounds of Hever Castle in a starter triathlon then celebrate with friends and family in the festival village.

  • 200 m lake swimming
  • 12 km road cycling
  • 2.5 km road running
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.
  • Sat 28 Sep
  • £64-£89
Oban, Argyll and Bute, UK

Craggy Island Triathlon | Saturday

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
Not for the faint hearted, this race pushes competitors to their limits whilst visiting every corner of the beautiful castle estate and its surrounding rural area into the High Weald AONB.
  • Sun 29 Sep
  • £196-£295
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Gauntlet Triathlon

Not for the faint hearted, this race pushes competitors to their limits whilst visiting every corner of the beautiful castle estate and its surrounding rural area into the High Weald AONB.

  • 1.9 km lake swimming
  • 90 km road cycling
  • 21 km road running
Race through the beautiful grounds and surrounding area of the stunning Hever Castle in a triathlon for a range of levels then celebrate with friends and family in the festival village.
  • Sun 29 Sep
  • £100-£165
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Olympic Triathlon

Race through the beautiful grounds and surrounding area of the stunning Hever Castle 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
  • 10.5 km road running
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 29 Sep
  • £64-£89
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.

  • 650 m sea swimming
  • 16 km mountain biking + 362 m ascent
  • 8.5 km trail running + 234 m ascent
Scotland, you are immense. ROC Scotland athletes, you are legends! THE ROC takes on the Highlands, from Kinlochleven to the summit of Ben Nevis, the UK’s highest mountain and back.
  • Sat 5 Oct
  • £230-£240
Kinlochleven, Highland, UK

THE ROC SCOTLAND

Scotland, you are immense. ROC Scotland athletes, you are legends! THE ROC takes on the Highlands, from Kinlochleven to the summit of Ben Nevis, the UK’s highest mountain and back.

  • 1.5 km lake swimming
  • 53 km mountain biking
  • 18.5 km multi terrain running
An Olympic format mixed Team Relay Triathlon using the fantastic facilities at Torbay Velopark, professionally chip timed over a traffic-free course, BTF affiliated with a great finishers medal.
  • Sat 5 Apr 2025
  • £28-£34
Paignton, Devon, UK

Torbay Triathlon Relay

An Olympic format mixed Team Relay Triathlon using the fantastic facilities at Torbay Velopark, professionally chip timed over a traffic-free course, BTF affiliated with a great finishers medal.

  • 300 m pool swimming
  • 6 km road cycling
  • 1.8 km multi terrain running
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 2025
  • £32.50-£97.50
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 open water sprint tri comprises a 750m swim in Regatta Lake, a flat, multi lap bike course and a 5K run – all within the traffic-free park grounds. All levels welcome, solo or relay teams.
  • Sat 17 May 2025
  • £80.25
Nottingham, Nottinghamshire, UK

Outlaw Sprint Nottingham

This open water sprint tri comprises a 750m swim in Regatta Lake, a flat, multi lap bike course and a 5K run – all within the traffic-free park grounds. All levels welcome, solo or relay teams.

  • 750 m lake swimming
  • 19 km road cycling
  • 5 km trail running
Flat, fast and very popular! This open water tri comprises a swim in Regatta Lake, a relatively flat bike course and flat run laps of the lake and River Trent Path . All levels welcome, solo or relay.
  • Sun 18 May 2025
  • £50-£256.80
Nottingham, Nottinghamshire, UK

Outlaw Half Nottingham

Flat, fast and very popular! This open water tri comprises a swim in Regatta Lake, a relatively flat bike course and flat run laps of the lake and River Trent Path . All levels welcome, solo or relay.

  • 1.2 miles lake swimming
  • 56 miles road cycling
  • 13.1 miles road 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 18 May 2025
  • £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 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 2025
  • £99
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
The successful Dartmouth Triathlon returns for its 10th year! Sea swim, stunning coastal bike route, out and back run including Devon's flattest road plus chance to camp on the beach! Relay option too
  • Sun 8 Jun 2025
  • £54-£66
Dartmouth, Devon, UK

Dartmouth Triathlon | Sprint

The successful Dartmouth Triathlon returns for its 10th year! Sea swim, stunning coastal bike route, out and back run including Devon's flattest road plus chance to camp on the beach! Relay option too

  • 750 m sea swimming
  • 20 km road cycling
  • 5 km road running
Full Iron Triathlon distance with 4 laps in the famous Kielder Water, a cycle into the Scottish Lowlands then an off-road trail run along forest trails. It's a huge challenge on the legs!
  • Sun 29 Jun 2025
  • £310-£330
Hexham, Northumberland, UK

The Northumbrian | Full Iron Distance

Full Iron Triathlon distance with 4 laps in the famous Kielder Water, a cycle into the Scottish Lowlands then an off-road trail run along forest trails. It's a huge challenge on the legs!

  • 2.4 miles lake swimming
  • 112 miles road cycling
  • 26.2 miles trail running
Racing through the hills Kielder Forest and on hard-packed trails around the lake, this half distance triathlon is a serious test of endurance.
  • Sun 29 Jun 2025
  • £195-£210
Hexham, Northumberland, UK

The Northumbrian | Half Iron Distance

Racing through the hills Kielder Forest and on hard-packed trails around the lake, this half distance triathlon is a serious test of endurance.

  • 1.2 miles lake swimming
  • 56 miles road cycling
  • 13.1 miles trail running
This Olympic Distance Triathlon was one of 220 Triathlons 'Top 21 must-do' triathlon challenges for 2022, and shortlisted for best triathlon in the UK for 2020! Stunning and savage.
  • Sun 6 Jul 2025
  • £85-£129
Braunton, Devon, UK

Croyde Ocean Triathlon | Olympic Distance

This Olympic Distance Triathlon was one of 220 Triathlons 'Top 21 must-do' triathlon challenges for 2022, and shortlisted for best triathlon in the UK for 2020! Stunning and savage.

  • 1.5 km sea swimming
  • 37 km road cycling
  • 12 km trail running
This stunning but less savage Sprint Tri takes in all the awesome views and winding hilly Devon roads you have come to expect from the award-winning Croyde Ocean Triathlon!
  • Sun 6 Jul 2025
  • £65-£100
Braunton, Devon, UK

Croyde Ocean Triathlon | Sprint Distance

This stunning but less savage Sprint Tri takes in all the awesome views and winding hilly Devon roads you have come to expect from the award-winning Croyde Ocean Triathlon!

  • 750 m sea swimming
  • 18.5 km road cycling
  • 5.5 km trail running
A non-competitive triathlon where £10 of your entry fee goes to Cancer Research UK and every finisher gets an official medal. Guaranteed fun for all abilities and complete beginners very welcome!
  • Sun 17 Aug 2025
  • £70
Chesham, Buckinghamshire, UK

Buckinghamshire Triathlon | CRUK Wave

A non-competitive triathlon where £10 of your entry fee goes to Cancer Research UK and every finisher gets an official medal. Guaranteed fun for all abilities and complete beginners very welcome!

  • 150 m pool swimming
  • 6.5 km road cycling
  • 2.5 km trail running
A fabulous non-competitive triathlon at an accessible location with maximum support to encourage beginners to have-a-go and earn an official medal!
  • Sun 17 Aug 2025
  • £60-£89
Chesham, Buckinghamshire, UK

Buckinghamshire Triathlon | Fun2Tri

A fabulous non-competitive triathlon at an accessible location with maximum support to encourage beginners to have-a-go and earn an official medal!

  • 100 m pool swimming
  • 6.5 km road cycling
  • 1.25 km trail running
A fabulous non-competitive triathlon at an accessible location over 'Super Sprint' distance with maximum support to encourage beginners and earn an official medal!
  • Sun 17 Aug 2025
  • £60-£89
Chesham, Buckinghamshire, UK

Buckinghamshire Triathlon | Fun Triathlon

A fabulous non-competitive triathlon at an accessible location over 'Super Sprint' distance with maximum support to encourage beginners and earn an official medal!

  • 150 m pool swimming
  • 10 km road cycling
  • 2.5 km trail running
A fabulous competitive Super Sprint triathlon at an accessible location for all abilities with official finishers medals and trophies awarded to first place in each category.
  • Sun 17 Aug 2025
  • £60-£89
Chesham, Buckinghamshire, UK

Buckinghamshire Triathlon | Super Sprint

A fabulous competitive Super Sprint triathlon at an accessible location for all abilities with official finishers medals and trophies awarded to first place in each category.

  • 150 m pool swimming
  • 10 km road cycling
  • 2.5 km trail running
A competitive Sprint triathlon at an accessible location for a range of abilities with official finishers medals and trophies awarded to top 3 in each category as well as 1st place in every age group.
  • Sun 17 Aug 2025
  • £60-£89
Chesham, Buckinghamshire, UK

Buckinghamshire Triathlon | Sprint

A competitive Sprint triathlon at an accessible location for a range of abilities with official finishers medals and trophies awarded to top 3 in each category as well as 1st place in every age group.

  • 300 m pool swimming
  • 20 km road cycling
  • 5 km trail running

Relay triathlons near you

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