Hami Mahani

Shakeout Run Before a Marathon: How Far, How Fast, and What to Eat

Your shakeout run should be 15-25 easy minutes, 2 days before the marathon, in your full race kit with your rehearsed breakfast. Here's how far, how fast, and what to eat around it.

Two or three days before a marathon, most runners feel the same strange mix: restless legs, taper energy you don't know what to do with, and a fear that one wrong run will ruin months of training. That's exactly what a shakeout run is for. Done right, it's 20 easy minutes that calm your nerves, wake your legs back up, and let you rehearse race morning one last time. Done wrong — too far, too fast, in brand-new shoes — it can leave you flat on the one day that matters.

With the New York City Marathon on November 1 and fall races happening every weekend right now, here's the simple shakeout plan I give every runner who asks me: how far, how fast, what to wear, and what to eat around it.

What a Shakeout Run Actually Does

A shakeout run isn't training. You cannot gain fitness in the final week before a marathon — that work is already banked. What a short, easy run can do is:

  • Move blood through tired legs. Gentle movement clears that heavy, sluggish taper feeling after several reduced-mileage days.
  • Burn off nervous energy. Twenty minutes outside does more for your head than another hour refreshing the weather forecast.
  • Rehearse race morning. Same wake-up time, same breakfast, same shoes and socks, same fuel. Your shakeout is a dress rehearsal, not a workout.
  • Confirm everything works. No chafing surprises, no dead watch battery, no shorts that ride up. Better to find out on Thursday than at mile 14 on Sunday.

How Far and How Fast: The Simple Rules

Distance: 15 to 25 minutes, or roughly 2 to 3 miles for most runners. Higher-mileage runners used to 70+ mile weeks can go up to 30 minutes; first-time marathoners should stay closer to 15–20. When in doubt, shorter wins — nobody ever PR'd because of their shakeout, but plenty of people have tired themselves out with one.

Pace: Truly easy — you should be able to hold a full conversation the whole time, about 90 seconds to 2 minutes per mile slower than marathon pace. This is not the run to "test" whether goal pace still feels good. It will feel awkward and slow. That's normal — taper legs always feel strange.

Strides: If you want a little pop in your legs, add 4 short strides at the end: 15–20 seconds of smooth, relaxed acceleration (not a sprint), with a full minute of easy jogging between each. Strides wake up your neuromuscular system without creating fatigue. Skip them entirely if anything feels tight or sore.

When: Most runners do their shakeout the day before the race, or two days before. My preference: two days out, so the day before the race can be a true rest-and-prep day — laying out gear, eating well, and getting off your feet. If you travel to your race, a short shakeout after a flight or long drive feels especially good. Just keep it easy.

What to Wear (Hint: Nothing New)

Wear your exact race-day kit: shoes, socks, shorts, and top. This is your final systems check — make sure nothing rubs. The oldest rule in marathoning exists for a reason: nothing new on race day — and the shakeout is how you enforce it. One exception: if race morning will be cold at the start (NYC runners, Staten Island can be chilly while you wait), practice in a throwaway layer you'll leave behind at the start line.

What to Eat Before and After Your Shakeout

Your shakeout should mimic your race-morning fueling, just smaller. Eat the same breakfast you plan to eat before the race, at roughly the same time before the run. For most runners that's something simple and carb-focused 60–90 minutes beforehand: oatmeal, a bagel with jam, toast with banana, or rice cakes — foods you've already tested on long runs. This is not the morning to experiment with a new café breakfast.

Because you're in carb-loading territory by now, the shakeout sits inside a bigger fueling picture. If you haven't mapped that out yet, my 3-day carb load plan and race week hydration plan lay it out day by day. And if you're still deciding what the final 48 hours should look like hour by hour, the day-before marathon checklist covers it.

Personally, on shakeout morning I keep my fuel as simple and portable as possible — that's honestly why I built our Marathon Gummies the way I did. On nervous mornings my stomach doesn't want a big, sticky mess before I run; a few clean, easy-to-carry gummies give me quick carbs without the syrupy hands gels leave behind. Whatever you use — gummies, chews, or a plain bagel — the rule is the same: if it hasn't been in your long runs, it doesn't go in on race weekend.

After the shakeout, eat a normal carb-forward meal within the hour and keep sipping fluids with a little sodium through the day. You're topping off glycogen stores, not celebrating yet. Save the big celebratory meal for after the finish line.

A Sample Shakeout Week Schedule

  • 4 days out: Last short session with a few minutes at marathon pace, or full rest — follow the plan that got you here.
  • 3 days out: Rest or 20 easy minutes. Carb load begins in earnest.
  • 2 days out: Shakeout run — 20 minutes easy + 4 relaxed strides. Race kit on. Then feet up.
  • 1 day out: Rest. Short walks only. Lay out gear, pin the bib, charge the watch, set two alarms. See the taper week nutrition guide for what to eat.
  • Race morning: Eat the breakfast you rehearsed, 2–3 hours before the start. My full breakdown is in what to eat the morning of a marathon.

Mistakes I See Every Race Weekend

Turning the shakeout into a workout. Feeling fresh after a taper makes runners reckless. A fast shakeout doesn't prove fitness — it just spends energy you'll want at mile 22.

Walking the expo for four hours, or sightseeing on foot. Time on your feet is a cost this week. Get your bib, take your photo, try nothing new, and leave — especially in New York, where the city will still be there after the race.

Skipping the shakeout entirely because you're scared. Restlessness and heavy legs are normal taper symptoms. For most runners, 20 easy minutes makes race morning feel familiar instead of foreign.

Testing new fuel at the shakeout. If a free sample at the expo wasn't part of your training, it's not part of your race. Honestly, if gels have always sat well with you in training, there's no reason to switch now — consistency beats novelty every time in marathon week.

After the Finish Line

Within the first hour after finishing, get carbs and protein in, keep walking gently, and start fluids with electrolytes. That's the routine I follow myself, and it's why FinishLine is the amino recovery I reach for after hard efforts — it's what I personally use to get back out the door in the days after a big race. My full first-7-days marathon recovery guide covers each day after.

But that's for Sunday afternoon. For now: keep the shakeout short, keep it easy, eat the breakfast you've practiced, and trust the training. The hay is in the barn. Your only job this week is to show up rested, fueled, and calm.

Your turn: Do you swear by a day-before shakeout, or do you prefer total rest before a marathon — and what's the one thing you always do on your last run before race day? Tell me in the comments.

— Hami, 6AM Run