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Half Ironman (middle distance) in August 2025

Find half ironman (middle distance) in August 2025 - filter by date or location, display on a map or use the advanced search to find your perfect race.

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Now twice-yearly due to popularity, the 70.3 Tri has 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 31 Aug
  • £140
  • Sun 31 Aug
  • £140
Lifton, Devon, UK

Roadford Lake Triathlon | Middle Distance

Now twice-yearly due to popularity, the 70.3 Tri has 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
  • 1.9 km lake swimming
  • 93 km road cycling + 4245 ft ascent
  • 21 km road running + 1073 ft ascent
  • Sun 10 Aug
London, UK

London T100 | 100km

  • 2 km dock swimming
  • 80 km road cycling
  • 18 km road running
  • Sat 23 Aug
Cairndow, Argyll and Bute, UK

THE RESTLESS Gravel XTRI

  • 1.8 km lake swimming
  • 50 km gravel riding
  • 25 km xc running
  • Sun 31 Aug
Ellesmere, Shropshire, UK

Shropshire Triathlon | Middle Distance and Relay

  • 2 km lake swimming
  • 78 km road cycling
  • 20 km road running

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