Triathlon distances

How long is an Ironman distance triathlon? An Ironman triathlon is composed of a 2.4 mile (or 3.8km swim), a 112 mile (or 180km) bike and a 26.2 mile (or 42.2km) run.

This totals 140.6 miles, or 226km.

It’s definitely a long, hard day out!

As with all triathlons, the Ironman distances are completed in the same order of swim, bike and the run (a full marathon!) to finish.

In this article, you’ll learn:

• How each leg of an Ironman distance compares.
• What are the Ironman cut-off times?
• What is a respectable Ironman time?
• Why is the Ironman distance 140.6 miles?
• Why is it called an Ironman?
• Is 140.6 a full Ironman?
• How many hours a week is Ironman training?
• Is there a race longer than an Ironman?
• What percentage of people finish an Ironman?

Comparing Ironman Distances for each Discipline

How does each discipline compare in an Ironman distance?

See the chart below:

As you can see, the bike makes up nearly 80% of an Ironman distance triathlon! The swim is less than 2% and the run is the remainder – nearly 19% of the total Ironman distance.

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