About FuelCenter

Built by a runner, for runners

After getting tired of every fueling calculator on the internet giving the same useless advice (“take 30-90g carbs per hour”), FuelCenter was born.

That range is so wide it's meaningless. The difference between 30g and 90g per hour is the difference between bonking at mile 20 and running a PR. FuelCenter exists because runners deserve a tool that actually tells you what to do, down to the gram, down to the minute.

The high-carb approach

FuelCenter is built on the science of high-carb fueling. Not the outdated “sip a little Gatorade” approach, but the modern protocol where serious athletes are pushing 75-120g of carbs per hour on race day.

The methodology comes from David and Megan Roche's 8-guideline framework, the same zone-based, duration-tiered system elite athletes use.

Every tool and every piece of content on this site orients toward fueling more, not less. The understanding is that you need to train your gut to get there.

What you'll find here

• Fueling Calculator — Build a personalized, minute-by-minute race-day fueling plan with your exact gel brand
• Running Tools — Pace calculator, race time predictor, heat adjustment, and hydration calculator
• Race Sheets — Course-specific pace and fueling plans for popular marathons and ultras
• Blog — Gel comparisons, fueling strategies, and the data behind what actually works on race day

Also writing Surging

FuelCenter pairs with a running newsletter called Surging, which covers training, performance, and how progress compounds.