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Relay triathlons in UK in May 2026

Find relay triathlons near me in UK in May 2026 - search by date or place, display on a map or use the advanced search to find your perfect race.

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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
  • 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.

  • 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
  • 1.5 km sea swimming
  • 100 km road cycling
  • 13 km multi terrain running + 3330 ft ascent
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
  • 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!

  • Newcomers
  • Chip timing
  • Hilly
  • Event village
  • Age 15 & over
  • 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
  • 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.

  • Chip timing
  • Enter online
  • Undulating
  • Age 17 & over
  • 1500 m lake swimming
  • 46 km road cycling + 4245 ft ascent
  • 10 km road running + 1644 ft ascent
Stunning watersports venue with immaculate water quality, scenic run route, custom designed medal plus team relay option.
  • Sun 24 May 2026
  • £73-£99
  • Sun 24 May 2026
  • £73-£99
Bedford, Bedfordshire, UK

ATW Box End Sprint Triathlon

Stunning watersports venue with immaculate water quality, scenic run route, custom designed medal plus team relay option.

  • Enter online
  • Age 15 & over
  • 750 m lake swimming
  • 26 km road cycling + 558 ft ascent
  • 5 km road running + 85 ft ascent
Stunning watersports venue with immaculate water quality, scenic run route, custom designed medal plus team relay option.
  • Sun 24 May 2026
  • £94-£115
  • Sun 24 May 2026
  • £94-£115
Bedford, Bedfordshire, UK

ATW Box End Standard Triathlon

Stunning watersports venue with immaculate water quality, scenic run route, custom designed medal plus team relay option.

  • Enter online
  • Age 17 & over
  • 1500 m lake swimming
  • 40 km road cycling + 837 ft ascent
  • 10 km road running + 170 ft ascent
Challenge yourself to tackle a 100km Centurion this year, a distance made popular by the PTO race series. Ideal if you're training for a 70.3 Half-Iron or taking a step up from Standard Distance Tri.
  • Sun 24 May 2026
  • £120-£135
  • Sun 24 May 2026
  • £120-£135
Bedford, Bedfordshire, UK

ATW Box End Centurion 100km Triathlon

Challenge yourself to tackle a 100km Centurion this year, a distance made popular by the PTO race series. Ideal if you're training for a 70.3 Half-Iron or taking a step up from Standard Distance Tri.

  • Enter online
  • Undulating
  • Age 18 & over
  • 2250 m lake swimming
  • 81 km road cycling + 1674 ft ascent
  • 20 km trail running + 340 ft ascent

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