Triathlete cycling a coastal road above a harbour

Triathlon · Pembrokeshire coast

Ironman Wales 2027

Fuelling guide

A long, hilly coastal triathlon. Most of your fuelling happens on the bike, and the climbs change how and when you can eat.

Start by working out your carbohydrate target for your expected finish time, then practise that plan in your long sessions before race day.

Work out your race fuel

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