6

Half Ironman (middle distance) in UK in August 2025

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

Search by month

Search by place

Map

Events near me

Click an event for full event details, location, route, sustainability, what's included and how to enter.

Formerly The London Triathlon, this is one of the world’s biggest triathlons where athletes will race through the capital on a landmark-filled route. London is calling!
  • Sat 2 Aug 2025
  • Sat 2 Aug 2025
London, UK

London T100 | 100km charity places

Formerly The London Triathlon, this is one of the world’s biggest triathlons where athletes will race through the capital on a landmark-filled route. London is calling!

  • Chip timing
  • Enter online
  • Traffic free
  • Age 17 & over
  • 2 km dock swimming
  • 80 km road cycling
  • 18 km road running
Awarded the Event of the year (2021) in the Welsh Triathlon Awards, The Craft Snowman is well known as the toughest multi-terrain triathlon in the UK. It is not for the faint-hearted.
  • Sun 3 Aug 2025
  • £224.99-£249.99
  • Sun 3 Aug 2025
  • £224.99-£249.99
Betws-y-Coed, Clwyd, UK

Craft Snowman Legend (70.3) Triathlon

Awarded the Event of the year (2021) in the Welsh Triathlon Awards, The Craft Snowman is well known as the toughest multi-terrain triathlon in the UK. It is not for the faint-hearted.

  • Chip timing
  • Enter online
  • Mountainous
  • Age 18 & over
  • 1900 m lake swimming
  • 95 km mountain biking
  • 21.1 km multi terrain running
A gruelling Half Ironman-style challenge set over a weekend starting with a 1.2-Mile Swim on Friday, 56-Mile Sportive on Saturday then a Half Marathon on Sunday, supported by the best ever crowds!
  • Fri 29 - Sun 31 Aug 2025
  • £179
  • Fri 29 - Sun 31 Aug 2025
  • £179
Masham, North Yorkshire, UK

Half Long Course Weekend

A gruelling Half Ironman-style challenge set over a weekend starting with a 1.2-Mile Swim on Friday, 56-Mile Sportive on Saturday then a Half Marathon on Sunday, supported by the best ever crowds!

  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 16 & over
  • 1.2 miles lake swimming
  • 56 miles road cycling
  • 13.1 miles road running
The Long Course Weekend challenge specifically tailored to junior athletes. Swim on Friday, cycle on Saturday and run on Sunday. Same massive crowds and the same awesome experience!
  • Fri 29 - Sun 31 Aug 2025
  • £129
  • Fri 29 - Sun 31 Aug 2025
  • £129
Masham, North Yorkshire, UK

Junior Long Course Weekend

The Long Course Weekend challenge specifically tailored to junior athletes. Swim on Friday, cycle on Saturday and run on Sunday. Same massive crowds and the same awesome experience!

  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 14-17
  • 1.2 miles lake swimming
  • 56 miles road cycling
  • 10 km road running
  • Sat 23 Aug 2025
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 2025
Ellesmere, Shropshire, UK

Shropshire Triathlon | Middle Distance and Relay

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

Search by month

Search by place

Map

Search options

Back to search options