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Iron Distance Intermediate Triathlon Training Plan (24 weeks)



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24 Weeks

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Plan Description

Iron Distance Intermediate Triathlon Training Plan (24 weeks)

If you want to race an Iron distance triathlon check out the 24-week Iron Distance Intermediate Triathlon Training Plan from WhittleFit.

Who's it for?
The Iron Distance Intermediate Triathlon Training Plan is aimed at triathletes who have trained for a number of seasons, have completed a middle distance triathlon but are new to the Iron distance. The aim is to help you to achieve your goal with a clearly structured 24-week plan which avoids over-training and injury, whilst progressing with just the right balance of challenging and achievable training.

Is it for you?
If you’re looking for a training plan designed by specialist triathlon coaches who have competed in multiple Iron distance events all over the world and you don’t need a coach to hold your hand, then this is the training plan for you!

What's involved?
Because this plan is aimed at intermediate athletes, it progresses gradually over the 24-weeks to ensure you achieve your goal without injury or over-training, by building progressively, starting with an easier 3-4 weeks (to create structure & consistency), building towards several 'big training days' and culminating in a peak week of 15:10 hours of training.

Why choose our plan?
The coaches at WhittleFit have competed in Iron distance events all over the globe, therefore we’re very well placed to advise on the training requirements to have a great race.

Training Plan Sample Week


Average Weekly Breakdown

Workouts Weekly Average Longest Workout
3:19 hrs 3:00 hrs
5:11 hrs 5:00 hrs
1:40 hrs 1:15 hrs
Workouts Per Week Weekly Average Longest Workout
3:19 hrs 3:00 hrs
5:11 hrs 5:00 hrs
1:40 hrs 1:15 hrs

Training Load By Week

This plan works best with the following fitness devices:

  • GPS

All supported devices

Mark Whittle


Whoever you are and whatever your goals might be, WhittleFit are here to guide you on your triathlon and endurance sports journey. Our goal is to design and develop endurance training programs that really work for you, the individual.

We have plans available to you for:

  • Triathlon
  • Swimming
  • Running
  • Strength Training