MAVR BlogJanuary 17, 20268 min read

How MAVR Calculates Your Workout Fuel Plan (Without Spreadsheets)

Spreadsheets can be “correct” and still fail in real training. Here’s the MAVR approach: pick the workout that matters, set a carb target you can execute, and pair it with hydration and meal timing that makes sense.

FuelingTrainingHydrationMAVR App

Quick Answer

MAVR generates a workout fuel plan by looking at your upcoming training, choosing the session where fueling matters most, setting a personalized carbs-per-hour target, rounding it into a simple schedule, and pairing it with hydration guidance that can use your sweat profile.

The best plan is the one you can follow mid-workout.
Long workouts benefit from consistent dosing on a repeatable interval.
Hydration targets improve significantly with sweat profile data.
MAVR reduces decision fatigue by turning training into “what to do next.”

Why? Because most athletes don’t fail on math — they fail on execution: starting too late, guessing hydration, or trying a brand-new strategy on race day.

MAVR’s goal is simple: turn your training calendar into a fueling plan you can actually do, without obsessing over numbers.

Why Spreadsheets Fail (Even If the Math Is Right)

  • Training changes week-to-week, but spreadsheets are static.
  • Timing is everything — “hit X carbs today” isn’t actionable mid-workout.
  • Your gut limits what you can absorb at intensity.
  • Most tools ignore hydration and sodium, which often drives late-workout crashes.

What MAVR Uses (In Plain English)

FeatureWhy it mattersWhat you see in MAVR
Upcoming workoutsFueling needs depend on the sessionA plan for the workout that matters most
Duration + intensityDrives carb needs and GI toleranceA carbs/hour target + simple timing
Sport contextRunning and cycling differ in executionA schedule that matches how you train
Body weight + unitsScales targets appropriatelyTargets that fit you (metric/imperial)
Sweat profile (optional)Personalizes fluid + sodiumHydration ranges + electrolyte notes

How a Target Becomes a Schedule

A good plan doesn’t require mid-workout math. MAVR converts your target into practical “do this at minute X” guidance.

  • Start after the workout settles (often ~10–25 minutes).
  • Repeat a simple interval (often ~15–25 minutes).
  • Use practical increments so it matches real servings.

Hydration: Better With Sweat Data, Still Useful Without It

Two athletes can run the same pace and have completely different sweat and sodium losses. That’s why a one-size-fits-all hydration number fails.

If you’ve done sweat testing, MAVR uses it to improve fluid and sodium recommendations. If not, you still get evidence-based guidance and sensible ranges.

Frequently Asked Questions (FAQ)

Is MAVR’s workout fuel plan “AI generated”?

MAVR uses your training context plus evidence-based rules to generate consistent, repeatable fueling guidance. The goal is reliability — not random tips.

Why does MAVR sometimes focus on my long run instead of my next workout?

Because long sessions are where fueling mistakes cause the biggest performance and recovery problems. Planning for the key workout improves consistency.

Why are the recommendations rounded instead of super precise?

Precision doesn’t help if you can’t execute it. Rounding makes it easier to match real servings (gels, chews, drink mixes) and follow a plan under fatigue.

What if my workout duration is only an estimate?

MAVR can still plan from estimated durations. The plan is designed to be helpful even when workout data isn’t perfect.

Turn your training calendar into a fueling plan.

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