FuelCenter
Free personalized pacing and fueling tools for runners
FuelCenter launched on April 3, 2026.
What it does
Free pacing and fueling tools for marathon runners. Pick a race, enter your goal time and gel brand, and get a mile-by-mile strategy with elevation-adjusted pace splits and gel timing built for the actual course. All 6 World Marathon Majors plus 6 more popular races. 10 gel brands. Also includes a pace calculator, race time predictor, heat adjustment, and hydration calculators, and a growing blog with gel comparisons and race-specific fueling guides.
Free marathon fueling calculator, pace charts, and race nutrition tools. Personalized gel timing plans for every major marathon. No signup required.
FuelCenter builds personalized race strategies for runners. Set your goal time, select your carb intake, and get a mile-by-mile plan with elevation-adjusted splits and fueling timed to the course. Course-specific plans for Boston, NYC, Chicago, Berlin, London, and Tokyo. Why the on-course Nuun is nearly carb-free, the mile 1 gel, Hains Point, and how to fuel Beat the Bridge. Carb loading targets, the night-before dinner, race-morning breakfast timing, and the last 15 minutes before the gun. Cold blunts thirst, triggers diuresis, and thickens gels. Fluid, sodium, and carb targets by temperature band. Dose by body weight, when to take the caffeinated gel, and the verified caffeine content of…from fuelcenter.co
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