Race fueling

Race plan calculator

Start with a generic half marathon, marathon, or ultra, then connect a course if you want your plan aligned to aid stations.

Marathon fuel calculatorGel timing, hydration, sodium, caffeine, and pre-race carbs for 42.2 km.Half marathon fuel calculatorFuel planning for 21.1 km race efforts from 60 minutes to 2+ hours.Ultra marathon fuel calculator50K, 50 mile, 100K, 100 mile, and custom ultra race fueling.
Race

Race

Choose the distance, connect a course if available, and set your expected pace.

Enter minutes and seconds, for example 5:30.

Your plan will align fuel and water with known aid stations on this course.

Fuel

Fuel

Pick the product you have trained with. MAVR will calculate the timing.

Using 92 g/h

Personalize the target

Personalize the target

Used only to adjust your recommendation.

Conditions and hydration

Conditions and hydration

Adjust for race-day weather and how you normally sweat.

Est. finish 3h 52m·42.2 km·25g/gel · with water
Calculator feedback
Want training-aware nutrition around this race?See MAVR on the App Store