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SWIM 1.2 MILES - BIKE 56 MILES - RUN 13.1 MILES

Half Distance

28th June 2026

Half Distance

Info

Half the distance, doesn’t mean Half the kudos

The 70.3 HALF IRON DISTANCE is a huge challenge on any terrain. The Northumbrian is set in and around the beautiful Kielder Water, whose roads and trails known for their undulating nature – this race will not be easy on the legs! Please ensure you are confident in your ability to complete the course before entering.

The 2026 edition of the Half Iron distance will be host to the British and English Championships! This doesn’t change anything for our pre-registered participants, except that you will now be taking part in a national championships! Don’t worry if you were planning to have a more relaxed race, there will be no changes to cut offs or support throughout the event.

  • Swim 1.2 miles:

    2 laps in the breath-taking serenity of the famous Kielder Water, entry and exit via slipway. Wetsuits are mandatory.

  • Bike 56 miles:

    1 lap through the stunning valley and a ride over the Border to conquer the challenging, inspiring roads. The majority of the route will be on open roads however there will be some partial closures for safety, the route will be fully marshalled including Moto marshals. Non-drafting, bikes must comply with British Triathlon rules.

  • Run 13.1 miles:

    2 laps of Bull Crag covering the infamous Forest trails that host the testing Kielder Marathon

  • Transition area will be in the large lower car-park at Waterside
  • WHAT'S INCLUDED
  • £ 195 Early bird until 31st October
    • PRICE FROM 1st NOV: £215
    • The Northumbrian Quality Cycling Jersey
    • Swim Cap
    • Electronic Chip Timing
    • On Course Support
    • On Course Nutrition
    • Medal and Registration Goody-bag
  • ENTER NOW
  • ACCOMMODATION
  • Kielder Waterside Lodges
    • We have an exclusive link to book the on site lodges at Kielder Waterside, a short walk away from the Start – Finish area and Event Village.
    • Just click the link below, select the lodge you would like to book and use the following password when prompted:
    • Kielder1
    • All on site bookings are for 3 nights, Friday to Monday.
  • BOOK NOW
Info
Location: Kielder Waterside Park
Total Distance: 70.3 Miles
Total Elevation: +1803m (5915ft)
Entrants: 500
Start Time: 6.15am
Cut Off Time: 9 hours
Registration: Saturday 27th June