Quick answer
- A TrainingPeaks nutrition plan should convert each planned workout into specific carb, calorie, hydration, and recovery targets.
- Easy days need simple maintenance, hard sessions need pre-workout carbs and fast recovery, long sessions need in-workout fueling, and race week needs taper-specific carb loading.
- Mavr fills this gap by turning training calendar data into daily nutrition actions.
4 key facts
- TrainingPeaks is excellent for prescribing training stress, but athletes still need separate guidance for what to eat before, during, and after each session.
- Nutrition should rise and fall with training load instead of using one flat daily calorie target.
- Long runs, rides, bricks, intervals, and rest days all require different fueling strategies.
- Mavr gives serious runners and triathletes a workout-based nutrition layer on top of their existing training tools.
TrainingPeaks is one of the most powerful tools in endurance sport for prescribing and analyzing training. It quantifies your work with real rigor — distance, duration, intensity, TSS, pace, power, the fitness-and-fatigue chart, and your coach’s notes — so you always know exactly how hard tomorrow is supposed to be. On the training side, almost nothing else comes close.
But look at what a run workout does not tell you. When the calendar reads "2-hour aerobic run with a marathon-pace finish," it describes the workout, not the fueling. How many carbs should today carry? When does the first gel go in? Is this a day to push body composition or to eat fully? TrainingPeaks Premium has Fueling Insights, which estimates carbs and fat used on rides from power data. For runs, and for the meals around each session, those choices are still up to you.
The missing layer in TrainingPeaks
Endurance athletes do not need another generic meal plan. They need nutrition tied to the work they are actually doing.
- A rest day should not have the same carb target as a 20-mile long run.
- A short easy run should not trigger the same recovery meal as a threshold session.
- A race-week taper should reduce training stress while maintaining carbohydrate availability.
- A 70.3 brick should plan bike fuel, run fuel, sodium, and post-session recovery together.
This is the gap Mavr fills: it turns training context into nutrition decisions.
How to translate workouts into fuel
Easy run under 60 min
Nutrition priorityMaintain energy without overeating
What Mavr plansNormal meals, optional light pre-run snack, no during-run fuel
Intervals or threshold
Nutrition priorityShow up with glycogen and recover fast
What Mavr plansPre-session carbs, hydration, post-workout carb plus protein meal
Long run or ride
Nutrition priorityProtect glycogen and avoid bonking
What Mavr plansPre-load, carbs per hour, sodium, fluid, recovery meal
Brick workout
Nutrition priorityPractice race execution under fatigue
What Mavr plansBike-to-run fueling timeline and gut-tolerance notes
Rest day
Nutrition prioritySupport recovery without eating like race day
What Mavr plansLower carb target, stable protein, micronutrient-rich meals
| TrainingPeaks workout | Nutrition priority | What Mavr plans |
|---|---|---|
| Easy run under 60 min | Maintain energy without overeating | Normal meals, optional light pre-run snack, no during-run fuel |
| Intervals or threshold | Show up with glycogen and recover fast | Pre-session carbs, hydration, post-workout carb plus protein meal |
| Long run or ride | Protect glycogen and avoid bonking | Pre-load, carbs per hour, sodium, fluid, recovery meal |
| Brick workout | Practice race execution under fatigue | Bike-to-run fueling timeline and gut-tolerance notes |
| Rest day | Support recovery without eating like race day | Lower carb target, stable protein, micronutrient-rich meals |
Why flat calorie targets fail endurance athletes
Most calorie trackers ask for a goal weight, activity level, and daily target. That model breaks when your week has a rest day, a speed session, a long run, and a race simulation.
Training load is not flat, so nutrition should not be flat. A serious athlete may need hundreds or even thousands more calories on the biggest training day than on a rest day. More importantly, those calories should land around the work: before, during, and after the session.
A sample TrainingPeaks week
Monday
WorkoutRest or mobility
Fueling focusProtein, vegetables, normal portions, lower carb
Tuesday
WorkoutIntervals
Fueling focusCarb meal 2-3 hours before, recovery meal after
Wednesday
WorkoutEasy aerobic run
Fueling focusNormal meals, no special fueling
Thursday
WorkoutTempo or race-pace work
Fueling focusPre-session carbs and planned recovery
Saturday
WorkoutLong run or ride
Fueling focusHighest carb day, during-workout fuel, sodium, fluids
Sunday
WorkoutRecovery session
Fueling focusRebuild without overcorrecting appetite
| Day | Workout | Fueling focus |
|---|---|---|
| Monday | Rest or mobility | Protein, vegetables, normal portions, lower carb |
| Tuesday | Intervals | Carb meal 2-3 hours before, recovery meal after |
| Wednesday | Easy aerobic run | Normal meals, no special fueling |
| Thursday | Tempo or race-pace work | Pre-session carbs and planned recovery |
| Saturday | Long run or ride | Highest carb day, during-workout fuel, sodium, fluids |
| Sunday | Recovery session | Rebuild without overcorrecting appetite |
What to track after each session
The best nutrition plan improves because it learns from your training. Do not only track calories. Track whether the plan made the next session better.
- Energy in the final third of long sessions.
- GI comfort at race pace.
- Hunger and cravings later that day.
- Sleep quality after hard workouts.
- Leg heaviness or freshness in the next key session.
Fill the blank yourself first
Before reaching for any tool, you can fill the nutrition blank manually, and it is worth doing once to understand the logic. Each week, look at your TrainingPeaks calendar and tag every day as easy, hard, long, or rest. Set a carb range for each tag — roughly 3-5g/kg on easy and rest days, 6-8 on hard days, 8-10 around long sessions and key workouts — and add a during-workout plan (30-60g of carbs per hour) to anything over 75-90 minutes. That is genuinely most of a periodized nutrition plan, derived straight from the calendar you already keep.
Mavr automates exactly that translation — reading the type, duration, intensity, and timing of each planned workout and turning it into daily targets and pre, during, and post guidance — so you are not maintaining a spreadsheet beside your training log. It sits beside TrainingPeaks rather than replacing it. But the tagging method above works on its own, and doing it by hand for a week makes the whole approach click.
Frequently asked questions
Does TrainingPeaks create a nutrition plan?
TrainingPeaks Premium has Fueling Insights, which estimates carbs and fat used on rides from power data. For runs, and for meals around each session, you still need a way to turn workouts into carb, sodium, hydration, and meal timing targets. Mavr is designed to provide that nutrition layer.
Should my calorie target change based on TrainingPeaks workouts?
Yes. Training load changes day by day, especially during marathon and triathlon blocks. Your energy and carb targets should rise for long or hard sessions and come down on rest or easy days.
What should I eat before a hard TrainingPeaks workout?
For intervals, tempo, threshold, and long sessions, eat a carb-focused meal 2-3 hours before training and add a small carb top-up 30-60 minutes before if needed. Easy workouts under 60 minutes usually need less structure.
Is Mavr a calorie tracker or a fueling coach?
Mavr can track nutrition, but its core value is workout-based fueling: using training context to decide what you should eat before, during, and after the work.
General guidance for healthy adults, not medical advice. Talk to a doctor or registered dietitian if you have a health condition, take medicines or have special dietary needs.
