How to Train for a Marathon on Four Runs a Week

Four is the number most people arrive at once they stop pretending. Five was the plan. Six was the fantasy you had in January, in a kitchen, holding a highlighter. Four is what survives a job, a commute, and a household that also expects to be fed.

The good news is that four is not a compromise you need to apologise for. It is the shape of most of the beginner marathon plans that have actually got ordinary people round. Hal Higdon's Novice 1 — eighteen weeks, the plan your neighbour's cousin swears by — is four runs and one cross-training day, and it has taken more first-timers to a finish line than any amount of heroic six-day scheduling. Nobody put an asterisk on it.

What each of the four runs is actually for

The mistake is treating all four as the same run at slightly different lengths. They are not. Give each one a job and you stop agonising over whether Tuesday was fast enough.

The long run

This is the one that matters. Higdon is blunt about it: skip the odd midweek session if life demands it, but do not cheat on the long run. In Novice 1 it climbs from six miles in week one to twenty in week fifteen, with a stepback every third week where the distance drops and you are allowed to feel briefly competent again. Those stepback weeks are not a reward. They are the mechanism.

The midweek medium run

Higdon calls his the sorta-long run, which is the most honest name in distance running. It sits on a Wednesday and builds from three miles to ten. It is the run that stops your long run from being a fortnightly shock to a body that has otherwise been sitting down.

The two easy runs

Short, conversational, boring. Their entire purpose is to add mileage without adding damage. If you finish one and feel like you have achieved something, you have probably run it too hard. Genuinely — easy means easier than you think, and on four runs a week you cannot afford to spend them.

A week that fits round an actual life

Here is the standard four-run shape, using week eleven of Novice 1 as the example. Note where the rest days sit — Monday to recover from the long run, Friday to arrive at the next one with legs.

Add it up and the midweek mileage roughly matches the long run. That balance is deliberate, and it is the thing most people get wrong when they build their own plan: they hoard everything into Sunday and then wonder why mile eighteen feels like a betrayal.

The twenty-mile problem

Every plan waves a twenty-mile long run at you around week fifteen, and every plan quietly assumes you will cover it in something like three hours. If your marathon pace puts twenty miles closer to four and a half, you are not doing the same workout as the person the plan was written for. You are doing a considerably harder one, for a considerably longer time, and then going to work on Monday.

The common coaching adjustment for slower runners is to cap the long run by time rather than distance — often somewhere around three to three and a half hours — and accept that you will arrive on the start line having never run the full twenty. This is fine. Race day supplies crowds, adrenaline, a taper and a course closure you are trying to beat. It supplies the last few miles for you. What it will not supply is fitness you never built, which is why the eight weeks of consistent long runs before that point matter far more than one hero session.

What four runs a week will not do

It will not make you fast. Four runs builds the endurance to finish and very little of the sharpness to race, so if you are chasing a time rather than a finish, that is a different conversation and probably a fifth run. It also leaves no slack. On a six-run plan, missing a session costs you a sixth of the week. On four, it costs a quarter, and two missed weeks in a row is the point at which people quietly rewrite their goal. Consistency is doing more work here than any individual workout.

And it will not protect you from doing the easy runs too fast, which remains the single most popular way to arrive at the start line already tired.

Kit that survives eighteen weeks

Four runs a week for eighteen weeks is roughly seventy runs. Whatever you wear will be washed about seventy times, and the weak link will announce itself somewhere around week nine. Usually it is the shorts — a waistband that has stopped gripping, or a liner that was fine at five miles and hostile at fourteen. The Suffer shorts exist for the long run specifically: they sit still, they carry a gel, and they do not require a mid-run negotiation on a towpath.

The other reliable casualty is your feet. Long runs are where blisters get invented, and thin cotton socks are where they are incubated — the Blister socks are the cheapest insurance in the sport. Two pairs is enough for a four-run week if you are organised and three if you are honest. The rest of it — tees, caps, the lot — is over on the kit page, and none of it will make you faster. It will just stop the equipment from being the reason you had a bad Saturday.

Common questions

Is four runs a week enough to finish a marathon?

Yes, provided you do them for long enough. Higdon's Novice 1 runs to eighteen weeks on four running days plus one cross-training day, and it is the most widely used first-marathon plan there is. Four runs is not the minimum viable version of something better — it is the plan.

How many miles a week should I be running?

On a beginner four-day plan you typically start somewhere around fifteen miles a week and peak in the mid-thirties to forty in the biggest week. If your first week feels comfortable, that is correct. The plan is not for the person you are in week one.

Do I have to run twenty miles before race day?

Not necessarily. Many coaches cap the long run by time instead — commonly around three hours for runners who would be out much longer than that to cover twenty. Consistent long runs of sixteen to eighteen miles beat one twenty-miler that leaves you limping for a fortnight.

What happens if I miss a week?

One week, nothing. Pick the plan back up where the calendar says, rather than trying to make up the mileage. Two or more weeks off, or anything that hurts on a specific spot rather than aching generally, is worth a conversation with a physio or your GP before you resume.

Should I add a fifth run or cross-train instead?

If the schedule is the constraint, cross-train — swimming, cycling or brisk walking all add aerobic work without adding impact. If the constraint is your legs rather than your diary, a fifth easy run will do more for your marathon than a harder fourth one.

Related reading

If the marathon itself is still hypothetical, start with what nobody tells you about your first marathon. If eighteen weeks sounds like a lot to commit to before you have done the shorter distance, the half marathon plan for slow runners is the sensible stepping stone. And if you got here because the ballot said no, there are other marathons, several of which will let you take considerably longer over it.

Four runs a week, eighteen weeks, one medal you will put in a drawer. Suffer every mile. Still no medals.