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Ironman Triathlons in United Kingdom

The Ironman, 140.6, or Full-Distance triathlon is a long-format multisport event, including a 2.4 mile (3.86k) swim, 112 mile (180.25km cycle) and 26.2 mile (42.2km) run. There are two official Ironman events in the UK, in Bolton and Wales.
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  • JUL12
    Ironman UK
    Bolton, North West, United Kingdom

    Dubbed one of the UK's friendliest towns, Bolton has something for everyone in the IRONMAN family. Athletes can take a nature walk with the kids, go...

    £410
    • Triathlon
    • Ironman
    • Running
    • 5k
  • JUN21
    Ironman Cork
    Youghal, County Cork, Ireland

    IRONMAN Ireland, Cork, will showcase the beauty and rugged landscapes of County Cork - one of Ireland's most popular tourist destinations. With the...

    • Triathlon
    • Ironman
  • JUN21
    Ironman Ireland
    Youghal, County Cork, Ireland

    IRONMAN Ireland, Cork, will show off the alluring and jagged landscapes of County Cork, one of Ireland's most popular tourist destinations. With the...

    €555
    • Triathlon
    • Ironman
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About Ironman Triathlons in the UK

The Ironman, 140.6, or Full Distance Triathlon is the ultimate challenge for true endurance athletes. The event consists of a 3.8k swim, 180k cycle and 42.2k run (marathon distance) . This gives a total distance covered of 226.2k or 140.6 miles, hence the name. This is no spur of the moment challenge, many athletes will put in 6 months or more of preparations and we recommend you take the training seriously.

You’ll also want to make sure your properly prepared when it comes to kit. Without certain essentials, you won't be allowed to compete on the day, which would be unfortunate after all the training. Check out our list of 33 essentials to bring with you on race day for a handy checklist, however, be sure to check the specific requirements for any race you decide to enter.

What are the best Ironman events?

In recent years, more and more competitors have been testing themselves in long format triathlons. This has also led to a greater choice of events to compete in. Beyond the Ironman, there is another breed of extreme triathlon which is even more challenging. The Xtri world series have created some of the most brutal endurance events in the world. For example, the Celtman has you swim in ice cold water, followed by an extended cycle before finally climbing multiple Munros in the rugged Scottish Highlands.

What is the average time to complete an Ironman triathlon?

The Ironman is one of the most difficult one day events out there. With a typical cut off time of 17 hours, just finishing is a huge accomplishment. Average finishing times will also vary greatly depending on the course and terrain. That said, a finishing time of around 13 hours for a male and 14 for a female athlete would be very strong. For perspective, the world champions each year will look to complete a fast course in between 8 to 9 hours.

How long should I train for an Ironman triathlon?

Training from scratch for one of these events would take around 6 months. If you want to finish within the time limit you’ll have to train long and hard, but the effort will all be worthwhile when you cross that finish line at the end of it all.