ATHLETE TOOLS
Sports
TOOLS.
Find the most accurate Sports tools and calculators to optimise your performance.
Fasted Running Fuel Guide — Should You Eat Before a Run?
Find out whether to eat before your run, what to eat, and whether fasted training is appropriate — based on your run duration, intensity, and goal.
Marathon Wall Predictor — Will You Hit The Wall?
Assess your risk of hitting the marathon wall based on your training mileage, longest run, carb loading plan, and gel strategy — with a personalised fix.
Running Calorie Burn Calculator — Calories & Fuel Used Per Run
Calculate the exact calories burned, glycogen depleted, and fat used during any run — plus how many gels you need to replace the carbohydrate burned.
Sweat Test Calculator — Your Personal Sweat Rate in oz/hr
Calculate your exact sweat rate and fluid replacement needs using the professional weigh-in/weigh-out sweat test method, with results in oz/hr and sodium estimates.
Gel Season Budget Calculator — How Many Gels Do You Need Per Year?
Calculate the total number of energy gels you need for your entire race season — including training long runs and all planned races — with an estimated annual cost.