Quick answer
- During taper week, runners and triathletes should not slash food just because training volume drops.
- Keep protein steady, reduce only low-value extras, maintain carbohydrates for glycogen restoration, and shift toward familiar lower-fiber foods close to race day.
- Mavr adjusts taper-week targets around the actual race, workouts, and carb-loading window.
4 key facts
- Taper week lowers training volume, but race preparation raises the importance of stored carbohydrate.
- Cutting calories too hard can flatten energy, mood, sleep, and glycogen storage.
- Carb loading is a controlled increase, not one random pasta dinner.
- Mavr ties taper-week meals to the race date, start time, and remaining workouts.
Taper week feels strange. Training volume drops, your appetite may be unpredictable, and every meal suddenly feels like it could affect race day.
The goal is not to diet through taper. The goal is to arrive recovered, topped up, comfortable, and confident.
Do not match food to lower mileage too aggressively
Yes, your daily burn may drop when workouts shorten. But the taper is also when your body repairs, restores glycogen, normalizes fatigue, and prepares for a high-stakes effort. A hard calorie cut can work against all of that.
Calories
What to doTrim low-value extras if needed
What to avoidLarge deficit because mileage is lower
Carbs
What to doKeep carbs steady, then raise during carb-load window
What to avoidGoing low-carb to feel lean
Protein
What to doKeep protein consistent across meals
What to avoidSkipping meals because workouts are short
Fiber
What to doLower close to race day if your gut needs it
What to avoidChanging everything at once
| Taper-week decision | What to do | What to avoid |
|---|---|---|
| Calories | Trim low-value extras if needed | Large deficit because mileage is lower |
| Carbs | Keep carbs steady, then raise during carb-load window | Going low-carb to feel lean |
| Protein | Keep protein consistent across meals | Skipping meals because workouts are short |
| Fiber | Lower close to race day if your gut needs it | Changing everything at once |
What changes across the week
- Early taper: keep normal balanced meals and support recovery.
- Midweek: avoid aggressive restriction and keep training quality supported.
- Final 2-3 days: shift carbs higher if carb loading fits the race.
- Final 24 hours: use familiar, lower-risk foods and dial in fluids.
- Race morning: execute the breakfast and fuel timing you already practiced.
Race week checklist: what to eat and what to avoid
Here is the same week with real food on the plate. Write it on one page before race week starts, so nerves do not make you forget a step.
Early taper (7-4 days out)
EatThe meals that worked in training: carbs, lean protein, fruit, and vegetables
Avoid"Detox" plans, cutting carbs early, and new supplements
Final 2-3 days
EatAn extra low-fiber carb at every meal: white rice, pasta, bread, potatoes, bananas, applesauce. Light proteins like chicken, eggs, or tofu
AvoidSpicy or greasy food, and so much protein that you miss your carb target. In the final 24-48 hours, if your gut is sensitive: large portions of broccoli, cauliflower, kale, beans and lentils
Day before
EatNormal-sized, carb-rich, low-fat meals. Dinner example: white rice or pasta, a small portion of chicken, fish, or tofu, a low-fiber sauce, and sports drink or juice
AvoidLate-night overeating, salads, fried food, new dishes, and alcohol, which dehydrates you and disrupts sleep
Race morning
EatA breakfast you practiced, 3-4 hours before the start, such as a bagel with jam, a banana, and sports drink
AvoidExtra fiber, heavy fat or protein, and lots of coffee if your stomach is sensitive
| When | Eat | Avoid |
|---|---|---|
| Early taper (7-4 days out) | The meals that worked in training: carbs, lean protein, fruit, and vegetables | "Detox" plans, cutting carbs early, and new supplements |
| Final 2-3 days | An extra low-fiber carb at every meal: white rice, pasta, bread, potatoes, bananas, applesauce. Light proteins like chicken, eggs, or tofu | Spicy or greasy food, and so much protein that you miss your carb target. In the final 24-48 hours, if your gut is sensitive: large portions of broccoli, cauliflower, kale, beans and lentils |
| Day before | Normal-sized, carb-rich, low-fat meals. Dinner example: white rice or pasta, a small portion of chicken, fish, or tofu, a low-fiber sauce, and sports drink or juice | Late-night overeating, salads, fried food, new dishes, and alcohol, which dehydrates you and disrupts sleep |
| Race morning | A breakfast you practiced, 3-4 hours before the start, such as a bagel with jam, a banana, and sports drink | Extra fiber, heavy fat or protein, and lots of coffee if your stomach is sensitive |
Marathon vs 70.3 taper nutrition
Marathon
Taper-week focusGlycogen storage, breakfast timing, gel schedule
Key riskArriving under-carbed for the final 10K
70.3
Taper-week focusBike fuel plan, run gut comfort, sodium and fluids
Key riskOverlooking the bike-to-run nutrition handoff
Half marathon
Taper-week focusBreakfast, simple carb top-up, hydration
Key riskOvercomplicating a shorter race
Hot race
Taper-week focusFluid, sodium, and lower-risk carb choices
Key riskTreating cool-weather targets as fixed
| Race | Taper-week focus | Key risk |
|---|---|---|
| Marathon | Glycogen storage, breakfast timing, gel schedule | Arriving under-carbed for the final 10K |
| 70.3 | Bike fuel plan, run gut comfort, sodium and fluids | Overlooking the bike-to-run nutrition handoff |
| Half marathon | Breakfast, simple carb top-up, hydration | Overcomplicating a shorter race |
| Hot race | Fluid, sodium, and lower-risk carb choices | Treating cool-weather targets as fixed |
Resist the urge to cut
Taper week trips athletes up emotionally more than nutritionally. Training volume drops, the scale may tick up from glycogen and water, and the instinct is to "compensate" by eating less right when your body is trying to fully stock its fuel tanks for race day. Fight that instinct. Keep eating roughly normally through the early taper, then increase carbs in the final two to three days for the carb load — yes, even though you are training less. The small weight gain from stored glycogen is not fat; it is fuel and water, and it is exactly what you want at the start line. Taper is for arriving fresh and fully loaded, not for chasing race weight.
Separating taper eating from ordinary rest-day eating and connecting the carb load, race breakfast, caffeine, and fluids into one timeline is something Mavr builds from your race date. But the core discipline — do not under-eat the taper — is yours to hold, and it is the difference between toeing the line full or flat.
Frequently asked questions
Should I eat less during taper week?
You may need slightly less on some lower-volume days, but do not make a large cut. Taper week is when recovery and glycogen restoration matter. Mavr adjusts the decrease without treating taper like a diet week.
Will eating more carbs during taper make me gain weight?
Scale weight can rise slightly because glycogen stores water. That is not the same as gaining fat. For marathon and 70.3 racing, fuller glycogen stores are usually a performance advantage.
When should I reduce fiber before a race?
Many athletes reduce fiber in the final 24-48 hours if they are prone to GI issues, but the exact timing depends on your tolerance and race distance. Do not test a new extreme low-fiber plan on race week.
Can Mavr handle taper week differently from normal training?
Yes. Mavr can treat taper as a race-preparation phase, not just a week with fewer workouts, so carb loading and race-morning timing stay connected.
What foods should I avoid before a race?
In the final 24-48 hours, especially if your stomach is sensitive, skip high-fiber vegetables like broccoli, cauliflower, and kale, beans and lentils, fried or greasy food, spicy dishes, and anything new. They slow digestion and raise the risk of GI trouble on race day.
How many days should I carb load before a race?
Two to three days. That is enough time to top up glycogen stores, so there is no need to start a week out. Keep the early taper normal, then raise carbs in the final 2-3 days.
How much should I drink during race week?
Aim for roughly 35-45 ml per kg of body weight per day, plus extra fluid for any workouts, with electrolytes so sodium keeps up. On race morning, drink about 500-700 ml with electrolytes alongside breakfast, then top off with 200-300 ml in the 15-30 minutes before the start.
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. Caffeine advice is for healthy adults only. EFSA's safe limit is 200 mg in one dose and 400 mg in a day.
