August 2026

Introduction: Take a Breath—The Hard Work is Done

You’ve made it. Marathon taper week is finally here.

Take a real breath—not the shallow, stressed-out kind you’ve probably been taking for the last three weeks while juggling long runs, work deadlines, and that nagging pain in your left knee that turned out to be nothing. A proper, shoulder-dropping breath.

The hay is in the barn. You’ve done the work, and now it’s time to trust it.

I’m Joe, and I’ve been exactly where you are right now—probably twenty times at this point. I’ve stared at my Strava stats obsessively, wondering if my fitness had vanished overnight. I’ve interrogated my Garmin data after every easy run, convinced my legs felt “weird.” I’ve eaten an entire sleeve of biscuits at 10pm because taper anxiety is a very real hunger.

Here’s what I’ve learned after dozens of race weeks, coaching hundreds of runners, and making every taper mistake in the book: the taper doesn’t require perfection. It requires patience.

What This Guide Is (And Isn’t)

This isn’t a guide for elites who have massage therapists on speed dial and sponsors covering their travel. This is for you—the runner who still has a job to show up to, a family that needs dinner, maybe a flight to catch, and a growing pit of race-week anxiety sitting square in your stomach.

Whether you’re chasing a PB at London, Berlin, Boston, or New York City, or you’re running your first marathon at a local race two hours from home, this week follows the same principles. Your body needs to replenish glycogen stores, repair micro-damage, and stockpile energy. But your mind? Your mind needs reassurance just as much.

So here’s exactly what I’m going to give you over the next sections—an actual, day-by-day plan with:

• Specific mileage numbers (not vague ranges that leave you guessing)
• Exact workout structures for each day of race week
• A carb-loading strategy that won’t leave you bloated, panicked, or eating plain pasta for six meals straight
• Sleep, hydration, and caffeine tactics calibrated for real humans who still have to function at work
• Race-day logistics from expo pickup to the start line

A Quick Word on Taper Anxiety

If you’re feeling restless, irritable, or convinced your fitness is disappearing with every rest day—welcome to what runners affectionately call taper tantrums. It’s normal. Every runner I’ve coached, from first-timers to Boston qualifiers, experiences it.

Your legs might feel heavy. Your easy runs might feel harder than they should. You might wake up convinced you’ve forgotten how to run.

This is your body recovering. It’s repairing tissue, reloading glycogen, and preparing for something big. The heaviness is part of the process—it is not a sign that you’ve lost fitness in seven days.

I’ll address all of these feelings throughout this guide, because dismissing them doesn’t help. Acknowledging them—and giving you specific evidence for why they’re normal—does.

Let’s get you to the start line ready, not rattled.

Understanding the Marathon Taper Week: What Actually Happens to Your Body?

Here’s the truth about the marathon taper week that most training plans won’t tell you: it’s going to feel weird. Like, genuinely uncomfortable weird.

I’ve been through dozens of taper weeks—some for local races where I could sleep in my own bed, others for destination marathons like Berlin and London where I was navigating a different time zone while pretending I wasn’t panicking about my race-day shoes. And every single time, without fail, my body has tried to convince me I’m losing fitness. My legs have felt heavy. I’ve had phantom pains I’d never noticed before. I’ve stared at Strava wondering if my easy runs felt too easy.

Sound familiar?

The Science Behind the Taper (Without the Jargon)

During your training block, you’ve been breaking your body down. That’s not a bad thing—it’s exactly what training is supposed to do. Micro-tears in your muscles, depleted glycogen stores, a cardiovascular system pushed to adapt. But here’s what most runners forget: the fitness gains don’t happen during the hard workouts. They happen during recovery.

Your marathon taper week is essentially one massive recovery phase designed to let your body rebuild stronger than before. Here’s what’s actually happening inside you right now:

Muscle Repair and Supercompensation

Those micro-tears in your muscle fibers from your long runs and speed sessions? They’re finally getting the uninterrupted repair time they’ve been begging for. Your body isn’t just patching them back to baseline—it’s rebuilding them stronger, a process exercise physiologists call supercompensation. This is why you might feel heavy or sluggish during taper week. Your body is doing serious construction work, and that takes energy.

Glycogen Replenishment

Your muscles have been running on partially empty glycogen stores for weeks. During taper week, your body finally gets to fill those reserves back up. When combined with proper carb loading in the final 3 days, your muscles can store significantly more glycogen than they normally would—fuel that will be absolutely critical for race day.

Hormonal Reset

Cortisol, the stress hormone that’s been elevated from all that training? It’s finally dropping back to normal levels. Your testosterone and human growth hormone levels are balancing back out. Your immune system, which has been suppressed from training stress, is rebuilding its defenses.

Blood Volume and Enzyme Production

Your body is maintaining the increased blood volume you’ve built through training while continuing to produce aerobic enzymes that help process oxygen efficiently. Translation: you’re not losing fitness. You’re actually becoming more efficient at using the fitness you’ve built.

Why You Feel Terrible (And Why That’s Good)

Let me address the elephant in the room: yes, it’s completely normal to feel heavy, sluggish, or even sick during your marathon taper week.

Runners call these feelings “taper tantrums”—that restless, irritable sensation that comes from suddenly running less while your body goes through all these internal repairs. It’s like your muscles are throwing a minor rebellion because they’re used to being pushed and now they’re being told to chill.

Here’s what you might experience and why:

Heavy Legs

Your muscles are holding more fluid as they repair. Glycogen storage also pulls water into your muscles (about 3 grams of water for every 1 gram of glycogen). This is your fuel tank filling up, not your fitness draining away. Those heavy legs? They’re actually fully charged legs.

Phantom Pains

Suddenly noticing a twinge in your hip? A weird sensation in your arch? This isn’t new—you’ve just been too tired to notice it during peak training. Now that you’re resting, your brain has the energy to catalog every minor sensation. Unless it’s sharp, worsening, or altering your gait, it’s almost certainly nothing.

Restlessness and Irritability

You’ve been using running as stress management for months. Now you’ve cut your mileage, and your body is wondering where its daily dopamine hit went. This is normal. This is also why you’ll find yourself deep-cleaning your kitchen or reorganizing your running gear at 10 PM.

Poor Sleep

Ironically, the week you need sleep the most is often when it’s hardest to get. Anxiety about the race, combined with your body being less physically tired from training, can make falling asleep tough. I’ll cover specific sleep strategies later in this guide, but for now, know that one or two bad nights of sleep won’t ruin your race.

What the Data Actually Shows About Tapering

Let me give you some specifics, because vague advice like “reduce volume” isn’t helpful when you’re staring at your training plan wondering what to cut.

Research published in the International Journal of Sports Medicine found that optimal tapering protocols improve performance by 2-3% compared to no taper. For a 4-hour marathoner, that’s potentially 5-7 minutes. That’s the difference between hitting your goal time or missing it.

The most effective taper protocols have these characteristics:

• Volume reduction of 40-60% from peak training (so if your peak week was 50 miles, your marathon taper week should be roughly 20-30 miles total)
• Training frequency maintained (keep running the same number of days you’re used to, just shorter)
• Intensity maintained for some workouts (don’t make all your runs slow—keep some race-pace work to stay sharp)
• Duration of 7-14 days (for most amateur runners, a 7-day taper works well for the marathon, while 10-14 days is common for very high-mileage trainers)

Notice I said “maintain intensity for some workouts”—not all of them. Your marathon taper week isn’t about testing your fitness with gut-busting intervals. It’s about keeping your neuromuscular system firing while giving your aerobic system a break.

The Garmin/Strava Trap

Here’s something I wish someone had told me before my first marathon taper week: stop looking at your training stats with fresh eyes.

If you’re like most runners I coach, you’re going to upload a 4-mile easy run to Strava during race week and immediately compare it to a 4-mile easy run from peak training. Your pace will be slower. Your heart rate might be higher. Your Garmin might give you a lower training status.

Do not panic.

Your body is in repair mode. It’s carrying extra fluid. Your heart rate variability might be all over the place. Those numbers don’t reflect your race-day potential—they reflect your body doing exactly what it’s supposed to be doing right now.

Mute your notifications if you need to. Set your Garmin to show only time and distance during taper runs. I’ve had athletes put their watches in a drawer for race week and run purely by feel, and honestly, sometimes that’s the smartest approach.

Your Body on Day 7 vs. Day 1

By the end of your marathon taper week, if you’ve tapered correctly, here’s what you should notice:

• Energy levels returning (that flat, tired feeling from peak training should be lifting)
• Legs feeling springy during easy runs (not heavy and plodding)
• Mental clarity improving (brain fog from training fatigue clearing)
• Appetite stabilizing (you might be hungrier than expected—your body is repairing tissue)
• Race-pace feeling comfortable during short bursts (not like you’re fighting to hold it)

If you’re reading this and thinking “Joe, I’m on Day 4 and I feel like garbage,” I hear you. Keep going. Trust the process. The hay is in the barn, and now you’re just making sure it’s properly stored for race day.

What Tapering Looks Like for Different Runners

Because I promised you specifics instead of vague guidelines, let me outline what this actually looks like depending on where you are in your running journey:

First-Time Marathoners

If this is your first marathon, your peak weekly mileage might be 30-40 miles. Your marathon taper week should drop to roughly 15-20 miles, with your longest run being 6-8 miles early in the week. Don’t try to squeeze in one last long run—it won’t help, and it could hurt.

Experienced Marathoners (2-5 races)

If you’ve run a few marathons and your peak training was 50-60 miles per week, your taper week should be 25-35 miles. You can include a short progression run mid-week to keep your legs snappy—something like 4 miles easy, 2 miles at marathon pace, 1 mile easy.

Half Marathon Tapers

If you’re tapering for a half marathon instead of a full, your taper is shorter—typically 5-7 days—and less dramatic. You might only reduce volume by 30% rather than 50%. The half marathon doesn’t deplete your body the same way, so you don’t need as aggressive a recovery period.

A Quick Note on the Travel Factor

If you’re traveling to a destination race—maybe you’re flying from Dublin to New York for the NYC Marathon, or heading from São Paulo to Berlin—you’ve got an extra layer of complexity during marathon taper week.

Travel disrupts sleep, nutrition, hydration, and your general routine. If your race involves travel, consider arriving 2-3 days early if possible. This gives your body time to adjust to a new bed, new food, and potentially a different climate. I’ll cover race-week travel logistics in more detail later in this guide, but for now, factor travel into your taper planning.

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Next up: The exact day-by-day plan for your marathon taper week, including specific mileage, workouts, and nutrition guidance for each of the final 7 days.

Half Marathon Taper vs. Marathon Taper: The Crucial Differences

If you’ve run a half marathon before, you might assume a full marathon taper is just a slightly longer version of the exact same process. I remember making that exact mistake before my first 26.2. I figured, Hey, I just won’t run as much for a week or two, and I’ll be fine.

But the truth is, the physiological gap between recovering from 13.1 miles and recovering from the cumulative fatigue of a full marathon build is massive. You aren’t just doubling the distance; you’re dealing with a completely different level of muscle damage, glycogen depletion, and central nervous system fatigue.

Here’s the crucial difference: a half marathon causes muscle damage, but your body’s glycogen stores can generally survive the distance without completely shutting down. The marathon, however, creates deep micro-tears in your muscle fibers from the sheer impact of tens of thousands of steps. You are recovering from a fundamentally different level of stress.

Because of this, the way we approach the final 7 days is totally different depending on the race.

The Half Marathon Taper (7-10 Days Out)

For a half, your taper is short and relatively sweet. You only need about 7 to 10 days to shed the fatigue of training. You’ll drop your mileage down to about 60-70% of your peak volume, but—crucially—you keep the intensity. If you’re aiming for a specific time, doing a short, sharp workout (like 3 x 1 mile at goal pace or 4 x 400m) a few days before the race is highly recommended. It keeps your legs responsive, keeps the neuromuscular connections firing, and prevents you from feeling flat on race morning.

The Marathon Taper Week (The Final 7 Days)

This is where we change the game. By the time you reach your official marathon taper week, you are carrying the accumulated fatigue of multiple 18, 20, and 22-mile long runs. Healing that specific damage takes deep rest. In this final 7-day stretch, your volume needs to plummet to roughly 25-30% of your highest weekly mileage.

If your peak week was 40 miles, this final week should sit around 10 to 12 miles total. That includes a 2-mile shakeout run the day before the race.

And unlike the half marathon, we drop the hard intensity. No more gut-busting intervals or threshold runs. Doing a hard workout now won’t build your fitness—it will only create fatigue you won’t have time to recover from. If you feel a little sluggish and slow this week, good. That means your body is hoarding resources and repairing the damage. That heavy-leg feeling isn’t a loss of fitness; it’s just the ‘taper tantrums’—your body’s way of telling you it’s almost ready to go.

Save the racing for race day. Trust the numbers, trust the process, and let the fitness you’ve built do the talking.

The Exact 7-Day Race Week Running Plan

I know exactly what you’re doing right now. You’re staring at your training plan, looking at the distances for this week, and thinking, “That can’t be right. Am I really only running 3 miles today?”

You might even be experiencing full-blown taper tantrums—that restless, irritable feeling that makes you want to sneak out for a sneaky 10-miler just to prove you still can. Don’t.

During your marathon taper week, your goal isn’t to build more fitness. That ship has sailed. Your goal now is to shed fatigue while keeping your legs snappy. We are cutting your overall volume by about 60-70% from your peak week, but we are keeping the frequency (so your body doesn’t forget how to run) and a touch of intensity (so you don’t feel flat on race day).

Side note: Is it normal to feel heavy or sluggish during taper week? Absolutely. Your muscles are hoarding glycogen and water right now to prepare for race day. If your legs feel like lead, congratulations—your body is doing exactly what it’s supposed to do.

Here is the exact, day-by-day running blueprint I use with my runners. Assuming your race is on a Sunday, here is your final 7-day playbook:

Sunday (7 Days Out): The Last Long-ish Run

• The Workout: Marathoners should run 6–8 miles total, with 2–3 miles at goal marathon pace in the middle. If you are a high-mileage, experienced runner who already tapers well with a slightly longer final weekend run, stretching that to 8–10 miles can work—but only if it is part of your normal taper pattern. Half marathoners should keep this to 5–6 miles total.
• The Details: Start easy, lock into race rhythm for the middle segment, and finish relaxed. This is not a fitness-building workout. It is a confidence-building rehearsal.
• The Why: You want one final reminder of what race pace feels like without creating new fatigue. Think rhythm, not heroics.

  Monday (6 Days Out): Easy Recovery

• The Workout: 4 miles easy.
• The Details: Truly easy. You should be able to sing along to your playlist without gasping. Upload it to Strava if you want the kudos, but don’t chase any segments.

Tuesday (5 Days Out): Keep the Snap

• The Workout: 5 miles total with 4 x 20-second strides.
• The Details: Run 4 miles at your standard easy pace. Near the end, throw in four 20-second strides. A stride is a fast, controlled acceleration—about 80-90% of your max effort—followed by a full walking recovery.
• The Why: Strides wake up your fast-twitch muscle fibers and keep your running mechanics sharp without creating any fatigue.

Wednesday (4 Days Out): The Mid-Week Shakeout

• The Workout: 4 miles easy.
• The Details: Keep it relaxed. This is just about getting blood flow to your legs to flush out the lingering heaviness from the weekend. If you absolutely need a little extra work, keep it to light mobility or the kind of maintenance I cover in my strength training guide for runners.

Thursday (3 Days Out): Minimalist Momentum

• The Workout: 3 miles easy + 2 x 20-second strides.
• The Details: A short, sweet run. Do the strides at the end to remind your brain and legs how to move quickly. You are almost there.

Friday (2 Days Out): The Rest Day Choice

• The Workout: Rest, or 20 minutes of light cross-training.
• The Details: If you are traveling to a destination race (like heading to London, Berlin, or New York), take the full rest day. Travel fatigue is real. If you’re staying home and climbing the walls, a 20-minute spin on a stationary bike or a brisk walk is fine. Keep your heart rate low.

Saturday (1 Day Out): The Shakeout

• The Workout: 15-20 minutes (approx. 1.5 – 2 miles) at a very relaxed pace.
• The Details: Should I run the day before a marathon? Yes! A short shakeout run the day before the race is a veteran move. It helps relieve travel stiffness, calms the nerves, and gets you out of the hotel room so you aren’t overthinking things. Keep the Garmin in your pocket for this one; just run by feel, then finish with a short dynamic stretching routine instead of anything aggressive.

Trust the process. You might feel like you aren’t doing enough, but when you toe the starting line on Sunday morning, those rested, springy legs will thank you.

Marathon Carb Loading: How to Fuel Without the Bloat

Let’s talk about the most misunderstood part of marathon taper week: carb loading.

Somewhere along the way, runners got the idea that carb loading means eating an obscene amount of pasta the night before the race. You know the scene—a massive bowl of spaghetti, garlic bread, maybe a second helping “because I’m running a marathon tomorrow.” Then you wake up feeling bloated, sluggish, and honestly a bit sick.

That’s not carb loading. That’s just overeating.

Proper carb loading is a strategic process that takes place over 2-3 days, not one giant meal. And when done right, you’ll feel energized and ready—not like you swallowed a bowling ball.

The Science: Glycogen Depletion and Supercompensation

Here’s what’s actually happening in your body during marathon taper week. Your muscles store carbohydrate as glycogen—think of it as your body’s race-day fuel tank. A well-trained runner can store roughly 400-500 grams of glycogen in their muscles and liver. That’s enough to fuel about 18-20 miles of marathon-paced running before you hit the wall.

The goal of carb loading is to push those stores beyond their normal capacity through a process called glycogen supercompensation. When you reduce training volume (which you’re already doing during your taper) while increasing carbohydrate intake, your muscles essentially “overfill” their glycogen tanks. Research shows this can increase your stores by 20-50% compared to normal levels.

More fuel on board means you can maintain your pace for longer before bonking.

The Exact Numbers: How Many Carbs You Actually Need

Forget vague advice like “eat more carbs.” Here are the specific targets that research—and my own experience—supports:

• Carb intake: Aim for 8-10 grams of carbohydrate per kilogram of body weight per day for 2-3 days before the race
• For a 70kg (154lb) runner: That’s roughly 560-700 grams of carbs per day
• For an 80kg (176lb) runner: That’s roughly 640-800 grams of carbs per day

I know those numbers sound massive. Here’s the secret: you’re not eating more food overall. You’re replacing fats and some protein with carbohydrates. Total calorie intake stays roughly the same as your normal diet—only the macronutrient balance shifts.

The Rule of Thirds: A Practical Approach

If counting grams feels overwhelming (and honestly, who has the mental bandwidth for that during race week?), use my Rule of Thirds instead:

1. Reduce volume by 1/3 — Eat slightly smaller, more frequent meals rather than three massive ones
2. Maintain frequency — Eat every 3-4 hours to keep energy levels stable
3. Shift the ratio — Make carbs the star of every meal, with protein and fat playing supporting roles

This approach naturally increases your carb intake without requiring a calculator or a spreadsheet.

What to Eat: A Simple Carb-Loading Framework

Here’s a practical way to structure your eating in the final 2-3 days:

Breakfast: Bagel or toast with jam, oatmeal with banana and honey, or pancakes with syrup. Skip the eggs and bacon for now—they’re too fat-heavy.

Lunch: Rice bowls, pasta salads, or sandwiches on thick bread. Think plain, digestible carbs.

Dinner: This is where the classic “night before the marathon pasta dinner” comes in—and there’s wisdom in the tradition. Pasta with a light tomato sauce (not creamy or oily) is perfect. Just don’t go back for thirds.

Snacks: Pretzels, rice cakes, bananas, sports drinks, fruit smoothies. Graze throughout the day.

Hydration: Sip consistently rather than chugging. Add electrolyte drinks like Lucozade, Gatorade, Maurten, or SIS to your routine—these help your body absorb and retain the water you’re drinking. Your urine should be pale straw color, not clear.

Avoiding the Bloat: Common Mistakes

The number one reason runners feel bloated during carb loading? They combine high carbs with high fat or high fiber. Here’s what to avoid:

• Don’t load up on whole grains — White rice, white pasta, and white bread are actually better right now. They’re easier to digest and pack more carbs per bite.
• Skip the raw veggie platters — Too much fiber causes GI distress. Cook your vegetables instead.
• Avoid creamy, oily, or fried foods — That includes cream sauces, heavy cheese, and anything deep-fried. Fat slows digestion.
• Watch the beans and lentils — Great for training, terrible for the night before a race.
• Limit gassy vegetables — Broccoli, cauliflower, and cabbage can cause bloating.

Timing Matters: When to Start Carb Loading

For a Sunday marathon, begin your focused carb loading on Thursday or Friday morning. This gives your body 2-3 full days to max out those glycogen stores.

Thursday: Start shifting your meals toward carbs. Nothing extreme—just begin the transition.

Friday: Full carb-loading day. This is when you hit those 8-10g/kg targets.

Saturday: Continue carb loading, but eat your main meal at lunchtime rather than dinner. This gives your body time to digest before race morning. Your evening meal should be relatively small and simple—maybe toast and a banana, or a small bowl of rice.

What About Alcohol?

I’m not going to tell you that you can’t have a beer or a glass of wine with your pasta dinner—especially if you’re at a destination race and it’s part of the experience. But keep it to one drink. Alcohol dehydrates you and disrupts sleep, both of which are working against your race-day goals.

Save the celebration for after you cross the finish line.

The Reassurance You Need Right Now

If you’re reading this and feeling anxious about getting carb loading “perfect”—take a breath. Your body is remarkably good at storing fuel, especially when you’re tapered and resting. Even a decent attempt at carb loading is better than none at all.

You don’t need to hit exact gram targets. You don’t need to weigh your food. Just shift your meals toward carbohydrates, avoid the heavy stuff, and trust that your body knows what to do with the fuel.

Thousands of runners have stood where you’re standing right now, worrying about the same things. They ate their pasta, drank their sports drinks, and got to the starting line ready. You will too.

Next up: We’ll cover the essential race-morning checklist—exactly what to eat, when to wake up, and how to handle those final hours before the gun goes off.

Once your fueling is set, the last controllables are hydration, sleep, and caffeine timing. Nail those, and race morning gets much simpler.

Hydration, Sleep, and the Caffeine Strategy

By this point in your marathon taper week, you’re likely overanalyzing every single bodily sensation. Are your legs heavy? Is that a cough coming on? Why is your resting heart rate doing that weird thing on your Garmin?

Take a breath. We’ve all been there.

As we head into the final days, we need to look at the three pillars that will actually make or break your race-day experience: hydration, sleep, and your caffeine strategy. Notice I didn’t say ‘running.’ The running is largely done. Now, it’s about dialing in the logistics and treating your body like the finely tuned engine it is. Here is exactly how to handle the final 48 hours of your fueling and resting.

Hydration: The ‘Sip, Don’t Chug’ Rule

There is a massive difference between being hydrated and being waterlogged. I see too many amateur runners panic-drink two liters of water the morning before the race, only to spend their entire marathon stopping at portable toilets.

Here is the exact hydration protocol to follow in the final three days:

1. Check the tap water: Your urine should be a pale, straw-like yellow. Dark? Drink more. Completely clear? Back off. You want to see a hint of color.

2. Mix in electrolytes: Drinking plain water flushes out your system and depletes sodium. In the days leading up to the race, alternate between water and electrolyte drinks. If you are traveling to a race like the London Marathon or Berlin Marathon, find out what sports drink will be on the course (like Lucozade or Maurten) and start practicing with it now. If you normally use SIS or Gatorade, stick with what your stomach knows.

3. Stop drinking at a specific time: On Saturday night, stop drinking large fluids around 7:00 PM or 8:00 PM. This gives your body time to process the liquid so you aren’t waking up three times in the night to use the bathroom, disrupting that crucial sleep. Sip a little water before bed, but don’t guzzle.

4. Race morning: Drink 16-20 ounces of water or electrolyte mix when you wake up, then sip intermittently until the gun goes off.

Sleep: Why the ‘Night Before’ Doesn’t Matter as Much as You Think

I’m going to let you in on the biggest secret of marathon taper week: the sleep you get the night before the race is actually the least important night of sleep you’ll get all week.

Why? Because you’re going to be nervous. You’re going to toss and turn. You might stare at the hotel ceiling from 2:00 AM to 4:00 AM. That is totally normal, and it will not ruin your race. Adrenaline is a powerful drug.

The sleep that truly matters happens on Wednesday, Thursday, and Friday nights. That is when your body does its deepest recovery work. If you are traveling on Friday, do everything you can to get a good night’s sleep on Thursday.

Basic Sleep Hygiene Practices for Race Week:

• Screen curfew: Stop scrolling Strava or looking at the weather forecast an hour before bed.
• Cool the room: Set the thermostat to 65°F (18°C).
• The ‘To-Do’ List trick: If your brain is spinning with race anxiety, write down every single thing you are worried about on a piece of paper. Once it’s on paper, your brain will often let it go.

The Caffeine Strategy: Don’t Overdo It

Many runners like to use caffeine as a performance enhancer on race day, but if you normally drink one cup of coffee a day, downing three espresso shots at 5:00 AM before the starting gun is a recipe for a porta-potty pit stop and a spiked heart rate.

The Strategy:

• Taper it slightly: If you are a heavy coffee drinker, some coaches recommend reducing your intake by about 50% in the final three days of the week. This lowers your tolerance so that the caffeine you do take on race morning hits harder.
• Timing is everything: If you are using a caffeine gel (like a Maurten 100 or Gu), plan to take it 15-20 minutes before the race starts, not at the start line. It takes time for caffeine to enter your bloodstream. If you wait until you are running, you might not feel the boost until mile 3, which is too late.
• Know your source: Race morning is not the time to try a new pre-workout powder. Stick to your standard coffee or a gel you have tested on your long runs.

The goal of these final days isn’t to gain new fitness—it’s to arrive at the starting line feeling calm, rested, and ready to execute the plan.

Race Morning Checklist: From Bed to Start Line

The alarm goes off. It’s race morning. Take a deep breath—your marathon taper week is officially over, and it’s time to race.

I know exactly what’s happening right now. Your heart is beating a little faster than usual, your stomach is doing flips, and you’re probably checking the weather app on your phone for the tenth time since midnight. You might have even woken up every two hours, panicked, thinking you overslept.

This is entirely normal. Even after dozens of races, I still do the exact same thing. The key now is to take that nervous energy and channel it into a calm, methodical routine. You’ve done the work. The hay is in the barn. Now, let’s get you to the starting line.

Here is your exact, minute-by-minute race morning checklist, built from years of trial and error (and one very memorable time I forgot to pack socks).

3 to 4 Hours Before the Gun: Wake Up and Fuel

• The Alarm: Set two alarms, just in case. If you’re traveling and worried about a dead phone battery or a missed hotel wake-up call, this is your safety net.
• The Breakfast: Eat exactly what you practiced the morning before your longest training runs. If you didn’t practice anything, stick to a plain white bagel with a thin layer of peanut butter and a banana. Aim for roughly 80-100 grams of carbohydrates. Avoid heavy fiber, excessive fats, or spicy foods.
• The Caffeine: If you typically drink coffee, now is the time. Have your usual cup to help stimulate your nervous system and, frankly, to get your digestive system moving before you leave the house or hotel.
• The Hydration: Drink 16-20 ounces (about 500ml) of water or electrolyte drink with your breakfast. Sip it, don’t chug it. After this, you’ll just sip to thirst until the race begins.

2 Hours Before: Logistics and Lubrication

• Get Dressed: Lay out your kit exactly as you plan to wear it. Check the weather one last time and decide on your final layers.
• The Anti-Chafe Protocol: Do not skip this. Apply Vaseline, BodyGlide, or your preferred anti-chafe product generously. Hit the inner thighs, underarms, the back of your neck, and for the guys, the nipples. If you are wearing a hydration vest or race belt, apply it anywhere the straps or buckles might sit.
• Check Your Gear: Ensure your Garmin (or preferred GPS watch) is fully charged and plugged into the satellite. Double-check that your timing chip is securely fastened to your shoe—or that your bib, picked up from the race expo the day before, is safety-pinned to your shorts or race belt. Pro tip: If using a race belt, pin your bib to it now so you aren’t fumbling with safety pins in a crowded corral.

1 Hour Before: Travel and Porta-Potties

• Head to the Start: Whether you’re taking a subway to the New York City Marathon or walking from your hotel to a local race, leave early. Delays happen, and it’s much better to be sitting on a curb for 45 minutes than panicking in traffic.
• Dynamic Warm-up: Once at the start village, keep your movements gentle. A few leg swings, some walking lunges, and easy mobility stretches. You are not trying to burn energy; you are just waking up your neuromuscular system.
• The Bathroom Strategy: The lines for the porta-potties will be massive. Get in line early. Go when you have the chance, even if you don’t think you need to.

15 Minutes Before: The Corral

• Bag Check/Final Layer: Ditch your throwaway clothes or check your bag. I always recommend bringing an old long-sleeve shirt from a charity shop to wear in the corral and toss to the side just before the gun goes off. It keeps you warm without risking your good gear.
• Final Sips: Take one last small sip of your sports drink (like Lucozade, Gatorade, or Maurten) to prime your mouth and top off your energy, but stop drinking heavily now to avoid that uncomfortable sloshing feeling.
• Hit Start: As you cross the timing mat, start your watch, take one final, deep breath, and look around.

You are surrounded by people who have gone through the exact same grueling training, the same marathon taper week anxieties, and the same early-morning jitters you have right now.

Trust your training, trust your fitness, and run the race you showed up to run. Have an amazing day out there.

Common Taper Mistakes That Leave Runners Flat

Over the years, I’ve watched dozens of runners—good, well-trained runners—sabotage their own races during marathon taper week. Not because they didn’t put in the training, but because they let anxiety drive their decisions during the final seven days.

I’ve made most of these mistakes myself. That’s why I can spot them coming from a mile away now.

Let me save you from the most common ones.

Mistake #1: The “Secret Long Run”

This is the big one. You’re lying in bed on Wednesday night, your legs feel weird, and you become absolutely convinced that you haven’t done enough. So you convince yourself that a sneaky 10-miler on Thursday will “make sure” you’re ready.

It won’t. It will just make you tired.

I did this before my second marathon. I added an extra 8-miler on Thursday because I felt sluggish and panicked. On race day? I felt flat by mile 16. Coincidence? Definitely not. You cannot build fitness in the final week, but you absolutely can accumulate fatigue.

What to do instead: Trust the plan. If you’re following the running schedule outlined earlier in this guide, you’re doing enough. Your body is already adapting and repairing. Let it finish the job.

Mistake #2: Turning Into a Couch Potato

This is the flip side—and it’s just as dangerous. Some runners hear “taper” and interpret it as “lie on the sofa eating biscuits for a week.” I’ve seen runners go from running 40+ miles per week to doing literally zero movement for 7 days.

The result? You show up on race day feeling stiff, sluggish, and mentally foggy. Your legs have forgotten what running feels like.

What to do instead: Keep moving. Do the short shakeout runs. Go for walks. Do some gentle stretching. Your body needs some stimulus to stay sharp—it just doesn’t need 20-milers. Those 20-30 minute jogs serve a real physiological purpose. They maintain neuromuscular coordination and keep your running mechanics dialed in.

Mistake #3: Carb Loading Like It’s Thanksgiving

We covered proper carb loading earlier, but this mistake deserves a reminder: shoveling down massive pasta bowls for three days straight will not make you faster. It will make you bloated, uncomfortable, and probably a few pounds heavier from water retention.

The goal is strategic glycogen supercompensation—not a food challenge.

What to do instead: Follow the 3-day fuel-up strategy. Increase carbs to 7-10g per kg of body weight, but keep total calories roughly the same by reducing fat and protein slightly. Eat familiar foods. Stick to portions that leave you satisfied, not stuffed.

Mistake #4: Trying New Gear, Foods, or Routines

Race week is not the time for experimentation. Yet every single race expo I attend—whether it’s the London Marathon, New York City Marathon, or a small local event—I watch runners buy new shoes, try exotic energy gels, and sample mystery snacks at vendor booths.

Do not be this runner.

I don’t care how good the discount is on those racing flats. I don’t care if the Maurten representative says their new gel is “revolutionary.” Race week is for the tried-and-true. Nothing new.

What to do instead: Pack your race kit on Friday. Lay out everything you’ll wear and consume during the race. If you haven’t trained in it, don’t race in it. This applies to shoes, socks, shorts, sports bra, anti-chafe products—everything.

Mistake #5: Obsessing Over Sleep (and Then Not Sleeping)

Here’s a fun fact that might save your sanity: the sleep you get two nights before the race matters more than the sleep you get the night before.

Why? Because the night before, you’re going to be nervous. Your mind will race. You might toss and turn. And that’s completely fine. Every marathoner I know has had a terrible night of sleep before their best races.

The mistake isn’t sleeping poorly on Saturday night. The mistake is letting that sleeplessness convince you that your race is doomed.

What to do instead: Prioritise sleep on Thursday and Friday nights. Those are the nights that actually count for recovery and glycogen storage. On Saturday night, set your alarm, maybe take a mild sleep aid if you’ve used one before, and accept that whatever sleep you get is enough. Your adrenaline will carry you through.

Mistake #6: Over-Hydrating and Ignoring Electrolytes

You know that advice to “drink gallons of water” during race week? It’s not just wrong—it can be dangerous. Drinking excessive plain water without adequate sodium can lead to hyponatremia (low blood sodium), which will leave you feeling far worse than mild dehydration.

I see this most often in first-time marathoners who read somewhere that they need to “pre-hydrate” for three days straight. By race morning, they’re bloated, nauseous, and have been to the toilet eight times.

What to do instead: Drink to thirst, but add electrolytes. Sip on a sports drink (Lucozade, Gatorade, SIS—whatever you’ve used in training) throughout the day. Your urine should be pale yellow, not clear. If you’re travelling to a race, be especially mindful—air travel dehydrates you, so spend the flight sipping, not chugging.

Mistake #7: Letting Taper Tantrums Drive Decisions

You know what I’m talking about. That restless, irritable, paranoid feeling that hits around day 4 of reduced mileage. Your brain starts inventing problems. That slight tightness in your calf? Obviously a race-ending injury. That heavy feeling in your legs? Clearly you’ve lost all your fitness.

Is it normal to feel heavy or sluggish during taper week? Yes. It’s so normal that practically every runner experiences it. Your body is holding more glycogen and water than usual. Your muscles are repairing. Your nervous system is recalibrating. The heaviness is actually a sign that your body is doing exactly what it should be doing.

What to do instead: When taper tantrums hit, remind yourself that every sensation you’re feeling right now is normal. Say it out loud if you need to. Check in with a running friend or coach. And remember: the hay is in the barn. You’ve done the work. These feelings are not a sign that something is wrong—they’re a sign that your body is getting ready.

The Bottom Line on Taper Mistakes

Every single mistake on this list comes from the same root cause: fear. Fear that you haven’t done enough. Fear that you’re not ready. Fear that something will go wrong.

I get it. You’ve invested months of your life into this race. Of course you’re anxious.

But here’s what I want you to remember: you are prepared. You followed a training plan. You put in the long runs. You did the speed work. You showed up on the days you didn’t want to, in weather that tried to stop you, when life kept getting in the way.

Your marathon taper week is not the time to prove anything. It’s the time to trust what you’ve already proven.

Stay calm. Follow the plan. And I’ll see you at the start line.

Conclusion: Trust the Process and Have Fun

Look at you. You’ve made it through the hardest part of marathon taper week—and honestly, the hardest part of your entire training cycle.

Right now, you’re probably still second-guessing something. Maybe it’s whether you ate enough carbs. Maybe it’s whether that 2-mile shakeout run yesterday was too fast. Maybe you’re staring at your Garmin wondering why your resting heart rate is 3 BPM higher than usual.

Stop. Take a real breath.

The hay is in the barn. I know that’s an old saying, but it’s true now more than ever. You cannot gain fitness in this final week, but you can lose it by doing something stupid. You’ve put in the miles. You’ve done the long runs. Your body knows what to do—now you just have to get out of its way.

What I Want You to Remember on Start Line

Over the years, I’ve stood on start lines at the London Marathon, the Berlin Marathon, small local races, and everything in between. And I’ve learned something that took me way too long to figure out: the runners who perform best aren’t the ones who stress over every detail. They’re the ones who trust their training and actually enjoy the day.

So here’s my final advice, friend to friend:

You are more prepared than you think you are. Those heavy legs during taper week? Normal. That weird cough? Probably nerves. The fact that you’re overthinking every meal, every mile, every moment of sleep? That just means you care. And caring is good—but don’t let it become a prison.

Eat the carbs. Drink the fluids. Do the shakeout runs. Follow the plan we’ve laid out here. But then? Let it go. Watch a movie. Laugh with your family. Go to bed at a reasonable hour and trust that your body has spent the last 16 weeks becoming a marathon-running machine.

A Few Last Reminders

• Sluggish legs are normal. Your muscles are repairing and storing glycogen—that heavy feeling is actually a sign that your body is preparing for race day, not falling apart.
• Sleep matters, but don’t obsess. The sleep you get two nights before the race actually matters more than the night before. And if you toss and turn the night before? You’ll still be fine. Adrenaline is a powerful thing.
• No new gear. I don’t care how cute that shirt is at the race expo. Don’t do it. Stick with what you know.
• Trust the taper. Every study on glycogen depletion and supercompensation confirms what experienced runners know: resting works. Your body is doing important things right now, even if it feels like you’re doing nothing.

Now Go Get It

Marathon morning is going to arrive whether you stress about it or not. So you might as well enjoy it.

When you’re standing on that start line—whether it’s the New York City Marathon, a small local race, or your first ever 26.2—I want you to look around. Look at the thousands of other runners who went through the exact same training, the exact same taper tantrums, the exact same doubts. You’re all in this together.

And when the gun goes off? Don’t go out too fast. I know, I know—you’ve heard it a thousand times. But I’m saying it one more time because I care: do not go out too fast. Run your race. Trust your pace. And enjoy every single mile.

You’ve earned this.

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FAQ: Marathon Taper Week

Should I run the day before a marathon?

Yes—most runners do well with a 15- to 20-minute shakeout run the day before the race. Keep it extremely easy, add a few relaxed strides only if that is already part of your routine, and stop while you still feel fresh.

How many carbs do I need during taper week?

For a marathon, most runners do best by increasing carbs noticeably in the final 2 to 3 days rather than stuffing themselves all week. A useful target is roughly 8 to 10 grams of carbohydrate per kilogram of body weight in those final days, while keeping meals simple and familiar.

Is it normal to feel heavy or sluggish during taper week?

Completely normal. Reduced training plus higher glycogen storage often makes your legs feel flat, puffy, or strangely awkward. That sensation usually means your body is recovering and storing fuel—not that your fitness is disappearing.

Can I strength train during race week?

Skip heavy lifting. If strength work helps you feel good, keep it to light mobility, activation, or core work that leaves you feeling looser—not sore.

Further Reading for Busy Runners

• Dynamic Stretching for Runners — a practical pre-run warm-up you can use during race week.
• Strength Training: Boost Your Running Performance — how to build strength without sabotaging your running economy.
• Mastering Brick Workouts: Seamless Bike-to-Run Transitions for Triathletes — especially useful if your race season overlaps with triathlon training.

Good luck out there. You’re going to do great.

— Joe