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Half Ironman (middle distance) in UK in June 2026

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

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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 7 Jun 2026
  • £160-£180
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.

  • Chip timing
  • Enter online
  • Undulating
  • Age 18 & over
  • 1900 m lake swimming
  • 90 km road cycling + 1680 ft ascent
  • 21 km multi terrain running + 0 ft ascent
The Middle Distance Triathlon will not fail to impress. With stunning views of Weymouth nature reserve and a true test of stamina, you'll be beaming with pride at the finish line.
  • Sun 14 Jun 2026
  • £135
Weymouth, Dorset, UK

Weymouth WMD Triathlon | Weymouth Middle Distance Triathlon

The Middle Distance Triathlon will not fail to impress. With stunning views of Weymouth nature reserve and a true test of stamina, you'll be beaming with pride at the finish line.

  • Chip timing
  • Enter online
  • Undulating
  • Age 18 & over
  • 1900 m sea swimming
  • 90 km road cycling + 2501 ft ascent
  • 21 km multi terrain running + 259 ft ascent
Dive into the Plymouth Middle Distance Triathlon! A stunning sea swim, scenic coastal bike ride, and flat waterfront run offering an unforgettable multisport challenge for athletes of all abilities.
  • Sun 14 Jun 2026
  • £120
Torpoint, Cornwall, UK

Plymouth Middle Distance Triathlon

Dive into the Plymouth Middle Distance Triathlon! A stunning sea swim, scenic coastal bike ride, and flat waterfront run offering an unforgettable multisport challenge for athletes of all abilities.

  • Chip timing
  • Enter online
  • Age 18 & over
  • 1900 m sea swimming
  • 90 km road cycling + 4545 ft ascent
  • 20 km trail running + 1620 ft ascent
Get active in the beautiful grounds and surrounding area of stunning Cheshire in the epic Gauntlet! Bring your friends and celebrate completing your challenge in the festival village.
  • Sun 21 Jun 2026
  • £196-£245
Malpas, Cheshire, UK

Cholmondeley Castle | Gauntlet Triathlon

Get active in the beautiful grounds and surrounding area of stunning Cheshire in the epic Gauntlet! Bring your friends and celebrate completing your challenge in the festival village.

  • Chip timing
  • Enter online
  • Age 18 & over
  • 1.9 km lake swimming
  • 84 km road cycling
  • 21 km road running

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