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Half Ironman (middle distance) in Europe in May 2025

Find half ironman (middle distance) near me in Europe in May 2025 - 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 10 May
  • £240-£260
  • 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.

  • 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
A lake swim, a trail run and a road ride over the course of the festival weekend. Conquer a triathlon challenge over two days. Includes Full Weekend Festival Ticket in the price!
  • Sat 17 - Sun 18 May
  • £160-£165
  • Sat 17 - Sun 18 May
  • £160-£165
Keswick, Cumbria, UK

Keswick Mountain Festival | Keswick Conqueror

A lake swim, a trail run and a road ride over the course of the festival weekend. Conquer a triathlon challenge over two days. Includes Full Weekend Festival Ticket in the price!

  • Newcomers
  • Music
  • Chip timing
  • Enter online
  • Mountainous
  • Event village
  • Age 18 & over
  • 3.6 km lake swimming
  • 100 km road cycling + 1625 m ascent
  • 25 km trail running + 866 m 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 18 May
  • £120-£140
  • Sun 18 May
  • £120-£140
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
  • 80 km road cycling
  • 20 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 18 May
  • £135
  • Sun 18 May
  • £135
Lifton, Devon, UK

Roadford Lake Triathlon | Middle Distance

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 18 & over
  • 1900 m lake swimming
  • 92 km road cycling
  • 21 km road running
  • Sat 10 May
Swansea, West Glamorgan, UK

Mumbles Triathlon | Middle Distance

  • 1.9 km sea swimming
  • 90 km road cycling
  • 21 km road running
  • Sun 11 May
Ringwood, Hampshire, UK

The Huntsman Triathlon | Middle Distance Triathlon

  • 1.9 km lake swimming
  • 90 km road cycling
  • 21 km road running
  • Sun 18 May
Nottingham, Nottinghamshire, UK

Outlaw Half Nottingham

  • 1.2 miles lake swimming
  • 56 miles road cycling
  • 13.1 miles road running
  • Sat 31 May
Marazion, Cornwall, UK

Marazion Triathlon: The Kernowman | Kernowman 70.3 Triathlon

  • 1900 m sea swimming
  • 90 km road cycling
  • 21.1 km road running

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