What CarbRate does

How CarbRate builds your race fueling plan

CarbRate builds your fueling plan around your course, your body, the weather and the products you use. Then it trains your stomach to handle that plan and tells you exactly when to fuel on race day.

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The Boston course guide, with your fuel drawn on the elevation profile
Plan

Built on your exact course

Gels placed around the real hills and aid stations

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Plan home showing a measured sweat rate and the salt that follows from it
Plan

Personalized to your sweat rate, weight, and goal

Sweat rate, weight, goal time, gut tolerance

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Plan home: a warmer forecast has moved the drink budget, with an undo
Plan

Ready for race-day weather

Your plan adjusts when the forecast changes

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The live cue: gel at the station, four tenths of a mile out
Race

Live guidance through every gel and drink

Every gel and drink, called out on race day

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CarbRate Practice tab: week 9 of 16, Sunday hard long run carrying the exact race strategy
Practice

Trains your gut to handle more fuel

A week-by-week gut-training schedule

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Pick the gel and the drink you actually carry
Fuel

The products you already like, built into your plan

163 gels, chews, and mixes, built into your plan

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Not sure where to start? Build a free fueling plan and see your real numbers before you read another word.

Build a free fueling plan