Disclaimer

Last updated: March 2026

Ultra Fuel Planner is a planning tool. The following points apply to any plan or guidance it produces.

Plans are estimates, not prescriptions

All fuelling plans are based on your inputs, assumed models and route data. They are starting points for planning — not exact instructions to follow without thought.

Test strategies in training first

Never rely on a fuelling approach in a race without testing it during training. Your gut, pace and preferences on race day may differ from what you expect.

Individual tolerance varies

Carbohydrate tolerance, fluid needs and electrolyte requirements vary significantly between athletes. What works for one runner may not work for another, even in identical conditions.

Conditions change needs

Weather, terrain, pace, fatigue and race-day stress can all shift your fuelling requirements away from any pre-planned values. Stay flexible and respond to how you actually feel.

Not a substitute for professional advice

This tool does not replace advice from a qualified sports nutritionist, dietitian or coach. If you have specific health conditions, dietary needs or performance goals, seek professional guidance.

Listen to your body

If a fuelling strategy is not working for you — causing nausea, GI distress, or discomfort — stop or adjust, regardless of what any plan says. No plan is worth pushing through something that is clearly not working.