4

Half Ironman (middle distance) in UK in July 2026

Find half ironman (middle distance) in UK in July 2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

Filter by place

Filter by date

Map

Event listings

Select an event for photos, video, route, location, reviews, entry fees and how to enter.

Get ready for one of the UK’s most exciting Half Iron triathlons of the year! Dive into crystal-clear lake waters, then ride a smooth, rolling bike course and follow scenic on-site run paths.
  • Sun 5 Jul
  • £155-£175
Bedford, Bedfordshire, UK

ATW Odyssey At Box End Triathlon | Half Distance Triathlon

Get ready for one of the UK’s most exciting Half Iron triathlons of the year! Dive into crystal-clear lake waters, then ride a smooth, rolling bike course and follow scenic on-site run paths.

  • 2250 m lake swimming
  • 96 km road cycling + 1732 ft ascent
  • 20 km road running + 351 ft ascent
  • Chip timing
  • Enter online
  • Undulating
  • PB
  • Age 19 & over
A one-of-a-kind triathlon adventure from castle to coast – swim, bike, run and soak up the best of the North and South Downs, fully supported all the way, no navigation needed!
  • Sat 18 Jul
  • £265-£293
  • Early bird
Windsor, Buckinghamshire, UK

Castle To Coast Triathlon

A one-of-a-kind triathlon adventure from castle to coast – swim, bike, run and soak up the best of the North and South Downs, fully supported all the way, no navigation needed!

Early bird on now

  • 1.2 miles lake swimming
  • 66 miles road cycling + 3550 ft ascent
  • 14 miles trail running + 1512 ft ascent
  • Beginner-friendly
  • Chip timing
  • Enter online
  • Event village
  • Rural
  • Age 18 & over
Cold-water swim, relentless mountain climbs and a brutal trail run through Snowdonia — this ultimate endurance challenge demands grit, resilience and rewards you with unforgettable views.
  • Sun 26 Jul
  • £239.99-£259.99
Betws-y-Coed, Clwyd, UK

Snowman Legend Triathlon

Cold-water swim, relentless mountain climbs and a brutal trail run through Snowdonia — this ultimate endurance challenge demands grit, resilience and rewards you with unforgettable views.

  • 1900 m lake swimming
  • 95.6 km road cycling + 5045 ft ascent
  • 21.2 km multi terrain running + 2926 ft ascent
  • Chip timing
  • Enter online
  • GPS tracking
  • Hilly
  • Age 18 & over
  • Sun 19 Jul
Warwick, Warwickshire, UK

On The Edge Middle Distance Triathlon

  • 1.9 miles lake swimming
  • 56 miles road cycling
  • 13.1 miles trail running

Search options

Back to search options
4 steps to wellbeing
Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.