Six month marathon training: how to use the time

Six month marathon training is the comfortable version of getting to a marathon start line. Not because you train harder, but because you get to do things in the right order: eight to ten weeks of base building and strength work first, then a standard 16 to 18 week marathon build, then a taper. Six months is long enough to start from a few easy miles a week and short enough that you don't get bored and sign up for something else.

The mistake is to treat 26 weeks as one long marathon plan, ramping the long run from week one. That's how people peak in month four and limp through month six. Below: who a six month marathon training schedule suits, how to split it into phases, a week-by-week outline, and where your lifting fits. Do it by hand, or use a running plan app that covers the gym too.

Is six months enough to train for a marathon?

For most people who can already run a few miles, yes. It's close to ideal.

Those ranges match the timelines in how long to train for a marathon, which breaks down each starting point. If you want the weeks laid out for you, a marathon schedule that fits real life is built around your race date and the days you can actually train.

For everything that goes inside those weeks, the long run, easy pace and the taper, start with how to train to run a marathon.

Why six months beats twelve weeks

The extra time isn't luxury. It buys three things:

1. ›A base before the build. The marathon build is where a runner learns to run far. The base is where you become a runner who can handle the build.
2. ›Room for life. You will miss training. A big data analysis of 300,000 recreational marathoners found runners who had a training disruption of seven days or more ran 5–8% slower than when the same runners had only short disruptions (Feely et al., 2022). A six month plan can absorb a missed week. A short plan feels it.
3. ›More training overall. A meta-analysis of 85 studies on marathon training found that higher weekly distance, more long runs of 32 km or more and a longer longest run were all associated with faster marathon times (Doherty et al., 2020). Associations, not proof, but the direction is clear: the marathon rewards accumulated running.

If your race is closer, training for a marathon in 12 weeks is possible for runners who already have the base. Six months is how you get that base without rushing.

The six month marathon training schedule

Here's how 26 weeks divides up. This is coaching practice, adjusted to where you start.

Every third or fourth week throughout: a lighter week. Shorter long run, fewer miles, same number of days.

Weeks 1–8: base

• ›Runs: three to four a week, all easy, conversational pace.
• ›Long run: from wherever you are now, adding about a mile most weeks, toward 8 to 10 miles.
• ›Strength: two sessions a week. This is the best time in the whole plan to get stronger, because the running is still light.
• ›Strides: a few short, relaxed accelerations after one or two easy runs a week.

If you can't yet run 3 miles continuously, the first few weeks are run-walk. That's fine. Six months is enough room for it, just barely.

Weeks 9–14: early build

• ›Runs: four, or five for experienced runners.
• ›Long run: grows toward 13 to 15 miles, with a cutback every third or fourth week.
• ›Quality: one session a week. Tempo runs or hill repeats.
• ›Strength: two sessions, same loads, a set fewer.

Weeks 15–20: main build

• ›Long run: toward 18 to 20 miles. Later long runs include a few miles at goal marathon pace near the end.
• ›Quality: marathon-pace work starts to replace tempo runs.
• ›Half marathon: a tune-up half around weeks 16 to 18 gives you a pacing rehearsal and a realistic marathon goal. For context, an 11 minute mile half marathon time works out to about 2:24, and a recent half is the best predictor you'll have of what marathon pace to try.
• ›Strength: one or two sessions. Heavy-ish, short, never the day before the long run.

Weeks 21–23: peak

The biggest weeks of the plan. Last 18 to 20 mile long run about three weeks before race day. One strength session is often enough here. Everything else is easy.

Weeks 24–26: taper

Cut volume over the last two to three weeks while keeping some marathon-pace work. A meta-analysis by Bosquet et al. (2007) found a two-week taper with volume cut by 41–60%, keeping intensity and frequency, was the most effective approach across the studies it pooled. Last real lower-body lift about ten days out. In race week, a short shakeout run the day before is fine. Nothing new.

A sample week, mid-plan

Around week 16, for someone running four days and lifting twice:

Heavy legs go on the quality day (run first, lift later) or on an easy day. Never the day before the long run or the quality session.

The six month marathon training program for people who lift

Six months is the one marathon timeline where you don't have to choose between the gym and the race. The base phase is light on running, so lifting can lead for the first two months. Then the priorities flip.

• ›Weeks 1–8: two strength sessions, heaviest loads of the plan, building real strength.
• ›Weeks 9–20: two sessions, maintaining loads, cutting a set as the running grows.
• ›Weeks 21–26: one or two short sessions, then light work in the taper.

The case for keeping it: a systematic review by Blagrove and colleagues (2018) found strength training improved running economy by 2–8% in most of the studies that measured it, with body composition not negatively affected. As for what goes in those sessions, a good marathon strength workout is short, heavy-ish and scheduled around the long run, not the other way round.

What to expect over six months

• ›Month 1–2: It feels easy. Don't add extra. The base is supposed to feel like this.
• ›Month 3–4: Long runs start to mean something. You get hungrier.
• ›Month 5: Peak weeks. Tired legs, slower easy runs, big appetite. Normal.
• ›The scale may go up. More training means more stored fuel and water. Marathon training weight gain explained covers why that's usually not what it looks like.
• ›Life will interrupt. A cold, a trip, a busy month. Pick up where the plan is now; don't cram missed weeks in.

Six months vs no plan at all

Some people sign up for a marathon six months out, do nothing for five months, and then try to cram. That's functionally the same as trying to run a marathon with no training: some people finish, it hurts a lot, and the risk of getting hurt goes up. Six months is a gift. Use the first two of them.

How exrsz handles a six month build

exrsz builds a periodized marathon plan backward from your race date, using your level, the days you can train and your equipment, with running and lifting in one plan. With six months, that means a real base phase and strength block before the marathon build starts. It adapts each week to how training went and reshuffles missed sessions so the build still lands on race day.

FAQ

Is six months enough time to train for a marathon?

Yes, for most people who can already run a few miles. It allows a base phase of about two months, a full 16 to 18 week marathon build and a taper. From no running at all, it's tight but possible with patience.

What does a six month marathon training schedule look like?

Roughly eight weeks of base building, about twelve weeks of build with a long run growing to 18 to 20 miles, three peak weeks and a two to three week taper, with a lighter week every third or fourth week.

How many days a week should I run on a six month marathon training plan?

Three or four in the base phase, building to four or five in the build. Most of those runs should be easy.

Can I lift weights on a six month marathon training program?

Yes. Lift twice a week in the first two months while the running is light, then hold strength with one or two shorter sessions as the long runs grow.

Should I run a half marathon during six month marathon training?

It's a good idea. A half around weeks 16 to 18 gives you race practice and the best predictor of a realistic marathon goal.