Obstacle Course Racing

Nutrition

Fuel the mud

What to eat in training, the night before, on the start line and out on course.

Everyday nutrition for obstacle racers

How to eat to support running, strength and grip training.

The basics

Build each meal around a protein source, a portion of carbohydrate and plenty of vegetables.

  • Protein: roughly 1.6–2.2 g per kg of body weight per day, split across 3–5 meals.
  • Carbohydrate: scale with training — more on long-run and double-session days.
  • Fats: include oily fish, nuts, seeds and olive oil.
  • Hydration: aim for pale-yellow urine; add electrolytes on hot or long days.

Around training

Eat a carbohydrate-based snack 1–2 hours before hard sessions and a protein + carbohydrate meal within a couple of hours after.

Note

This is general guidance, not medical advice. Speak to a registered dietitian for individual needs.

Race-day fuelling plan

What to eat the day before, the morning of, and during races from 5 km to 21 km+.

Day before

Eat familiar, carbohydrate-rich meals and avoid anything new. Drink steadily through the day.

Race morning

2–3 hours before: porridge, toast with honey or a bagel, plus water. Keep fibre and fat low.

During the race

Fuel needs scale with time on course.

  • Under 75 min: water at stations is usually enough.
  • 75 min – 2.5 h: 30–60 g carbohydrate per hour (gels, chews) plus electrolytes.
  • Over 2.5 h: up to 60–90 g per hour if your gut is trained — practise in long runs.
  • Carry gels in a sealed pocket or belt: water and mud get everywhere.

Recovery

Change into dry, warm clothes first, then eat protein and carbohydrate. Rehydrate with electrolytes.