Eight stations. Sixty minutes of pain.
Your nutrition can't be an afterthought.

The truefuels system is built for what happens after the easy miles run out.

Informed Sport certified ·
Built by Alistair Brownlee ·
4.86★ (200+ reviews)

Shop Hyrox Bundle — Race Ready System £169.95

Or start with the Training Bundle — £79.95

60–90% of endurance athletes underfuel.

The wall, cramp and overheating are fuelling failures — not fitness failures.

01

Hitting the Wall

Hyrox sits at near-maximal intensity for 60–75 minutes. Glycogen burns faster than any endurance event at this duration. By station 5, athletes are running on empty — and there are still three stations to go.

Energy Gels

40g of fast carbohydrates per gel — start at 30–40g carbs/hr in training, build 10–15g per week, arrive at race day absorbing 80–90g/hr.

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02

Cramps

Hyrox generates intense, compressed sweat loss — more sodium and potassium depleted per minute than most endurance events. Calf and hamstring cramps in the final three stations aren't bad luck. They're a deficit built up from the first.

Electrolytes

390mg of sodium per sachet — matched to what your body actually loses in sweat, not inflated. Your hydration stays on track, from station 1 to the finish.

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03

Heat

Indoor venues are hot. Crowd, effort, and a closed environment mean core temperature climbs faster than any outdoor race. Heat is a performance variable before you've hit station 3.

CoreCtrl

4,000mg of L-Taurine per sachet — taken daily for 8 days before your event to help your body handle heat under load. Stay in control when the conditions turn against you.

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Sport

Target finish time

Conditions

Your recommended plan

8–9 gels + 4–5 electrolyte sachets

For a 3h 30min marathon in mild conditions → matches the Race Ready System

This matches the Race Ready System — save vs buying separately →

Best Value