You’re trying hard. That’s the problem.

The free sub-4-hour marathon plan built on easy miles.

Sub-4 is 5:41 per kilometre for 42.2 km. It is won in the easy weeks. This plan spends most of them well under race pace so the long runs build you up instead of breaking you down.

18
weeks
5
days / week
Every run
zoned

For the runner chasing four hours who knows the wall is built in training, not on race day.

Why so much easy?

You can’t outrun your easy days. Run easy when it’s easy so you can run hard when it’s hard. Going medium-hard on everything, the grey middle, is where amateur runners stall and where injuries come from. This plan puts a ceiling on your easy runs and saves the effort for the one day a week that earns it.

What a session looks like

CV intervals, week 7. Every quality session in the plan is laid out this way in the app.

Session structure
Warm-up~3km · Zone 1→2
1
Easy run
~3km
Final third in Zone 2
2
Strides
4 × 20s
Fast and relaxed
Full recovery between each.
Main set~5km · Zone 3
5×rounds of
3
~0.8km
5:05–5:16 /km
4 min · Four minutes at critical velocity: a notch past comfortably hard, and controlled. Not flat out.
4
Jog
~0.3km
6:03 /km or slower
1:30 min · Ninety seconds easy. Short: the point is to keep the ceiling pressure on.
Cool-down~1km · Zone 1
5
Easy jog / walk
~1km
Conversational or slower

The plan, week by week

Free. Take it exactly as it is.

Base

Easy running, plus a time trial to set your paces. Building the engine is still the job.

Week 1Base — easy start
49km
Mon
Easy run — Zone 2Zone 2
9 km · 60 min · 6:03–7:13 /km
Tue
Easy run — Zone 2Zone 2
9 km · 60 min · 6:03–7:13 /km
Wed
Easy run — Zone 2Zone 2
9 km · 60 min · 6:03–7:13 /km
Fri
Easy run — Zone 2Zone 2
9 km · 60 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
13 km · 86 min · 6:03–7:13 /km
Week 2Base — building consistency
53km
Mon
Easy run — Zone 2Zone 2
9.5 km · 63 min · 6:03–7:13 /km
Tue
Easy run — Zone 2Zone 2
9.5 km · 63 min · 6:03–7:13 /km
Wed
Easy run — Zone 2Zone 2
9.5 km · 63 min · 6:03–7:13 /km
Fri
Easy run — Zone 2Zone 2
9.5 km · 63 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
14.5 km · 96 min · 6:03–7:13 /km
Week 3RecoveryBase — recovery + benchmark
36km
Mon
Easy run — Zone 2Zone 2
7 km · 46 min · 6:03–7:13 /km
Tue
Easy run — Zone 2Zone 2
7 km · 46 min · 6:03–7:13 /km
Wed
5K time trialZone 4–5
5 km · 27 min
Warm up easy for 10 minutes, then 5 km as hard as you can hold. Cool down easy.
Fri
Easy run — Zone 2Zone 2
7 km · 46 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
10 km · 66 min · 6:03–7:13 /km
Week 4Base — aerobic discipline
53km
Mon
Easy run — Zone 2Zone 2
9.5 km · 63 min · 6:03–7:13 /km
Tue
Easy run — Zone 2Zone 2
9.5 km · 63 min · 6:03–7:13 /km
Wed
Easy run + strides — Zone 2Zone 2
9.5 km · 63 min · 6:03–7:13 /km
Fri
Easy run — Zone 2Zone 2
9.5 km · 63 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
14.5 km · 96 min · 6:03–7:13 /km
Week 5Base — aerobic discipline
58km
Mon
Easy run — Zone 2Zone 2
10.5 km · 70 min · 6:03–7:13 /km
Tue
Easy run — Zone 2Zone 2
10.5 km · 70 min · 6:03–7:13 /km
Wed
Easy run + strides — Zone 2Zone 2
10.5 km · 70 min · 6:03–7:13 /km
Fri
Easy run — Zone 2Zone 2
10.5 km · 70 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
16 km · 106 min · 6:03–7:13 /km
Week 6RecoveryBase — recovery + benchmark
39km
Mon
Easy run — Zone 2Zone 2
7.5 km · 50 min · 6:03–7:13 /km
Tue
Easy run — Zone 2Zone 2
7.5 km · 50 min · 6:03–7:13 /km
Wed
5K time trialZone 4–5
5 km · 27 min
Warm up easy for 10 minutes, then 5 km as hard as you can hold. Cool down easy.
Fri
Easy run — Zone 2Zone 2
7.5 km · 50 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
11 km · 73 min · 6:03–7:13 /km

Build

Quality arrives. One hard session most weeks; the rest stays genuinely easy.

Week 7Build — first quality session
53km
Mon
Easy run — Zone 2Zone 2
9.5 km · 63 min · 6:03–7:13 /km
Tue
Easy run + strides — Zone 2Zone 2
9.5 km · 63 min · 6:03–7:13 /km
Wed
CV intervalsZone 3
8.5 km · 47 min · 5:04–5:17 /km
5×
4 min at 5:05–5:16 /km
jog 1:30 min at no faster than 6:03–7:13 /km
Just above threshold, not a mile off it. If it turns into VO2max reps, you have changed the session.
Fri
Easy run — Zone 2Zone 2
9.5 km · 63 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
16 km · 106 min · 6:03–7:13 /km
Week 8Build — extending the work
62km
Mon
Easy run — Zone 2Zone 2
11.5 km · 76 min · 6:03–7:13 /km
Tue
Easy run + strides — Zone 2Zone 2
11.5 km · 76 min · 6:03–7:13 /km
Wed
Continuous tempoZone 3
6 km · 37 min · 5:16–5:31 /km
18 min at 5:16–5:31 /km
Sustainable. Same pace at the end as at the start.
Fri
Easy run — Zone 2Zone 2
11.5 km · 76 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
21 km · 139 min · 6:03–7:13 /km
Week 9Build — raising the ceiling
61km
Mon
Easy run — Zone 2Zone 2
11 km · 73 min · 6:03–7:13 /km
Tue
Easy run + strides — Zone 2Zone 2
11 km · 73 min · 6:03–7:13 /km
Wed
Marathon-pace repsZone 3
7 km · 43 min · 5:33–5:47 /km
2×
10 min at 5:33–5:47 /km
jog 2 min at no faster than 6:03–7:13 /km
Marathon-pace work. Target 5:40 /km. Controlled, even splits: exit each rep wanting more.
Fri
Easy run — Zone 2Zone 2
11 km · 73 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
20.5 km · 136 min · 6:03–7:13 /km
Week 10RecoveryBuild — recovery + benchmark
46km
Mon
Easy run — Zone 2Zone 2
8 km · 53 min · 6:03–7:13 /km
Tue
Easy run — Zone 2Zone 2
8 km · 53 min · 6:03–7:13 /km
Wed
5K time trialZone 4–5
5 km · 27 min
Warm up easy for 10 minutes, then 5 km as hard as you can hold. Cool down easy.
Fri
Easy run — Zone 2Zone 2
8 km · 53 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
16.5 km · 109 min · 6:03–7:13 /km
Week 11Build — holding the work
57km
Mon
Easy run — Zone 2Zone 2
9 km · 60 min · 6:03–7:13 /km
Tue
Easy run + strides — Zone 2Zone 2
9 km · 60 min · 6:03–7:13 /km
Wed
Marathon-pace ladderZone 3
8.5 km · 50 min · 5:33–5:47 /km
3 min at 5:33–5:47 /km
jog 1:30 min at no faster than 6:03–7:13 /km
5 min at 5:33–5:47 /km
jog 1:30 min at no faster than 6:03–7:13 /km
8 min at 5:33–5:47 /km
jog 1:30 min at no faster than 6:03–7:13 /km
5 min at 5:33–5:47 /km
jog 1:30 min at no faster than 6:03–7:13 /km
3 min at 5:33–5:47 /km
Marathon-pace work. Target 5:40 /km. Controlled, even splits: exit each rep wanting more.
Fri
Easy run — Zone 2Zone 2
9 km · 60 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
21.5 km · 143 min · 6:03–7:13 /km
Week 12Build — holding the work
60km
Mon
Easy run — Zone 2Zone 2
8.5 km · 56 min · 6:03–7:13 /km
Tue
Easy run + strides — Zone 2Zone 2
8.5 km · 56 min · 6:03–7:13 /km
Wed
Over-undersZone 3
7.5 km · 43 min · 5:11–5:23 /km
3×
3 min at 5:05–5:16 /km
3 min at 5:16–5:31 /km
jog 2 min at no faster than 6:03–7:13 /km
The under is not the rest. That is the whole point of it.
Fri
Easy run — Zone 2Zone 2
8.5 km · 56 min · 6:03–7:13 /km
Sun
Marathon-pace long runZone 2–3
26.5 km · 166 min · 6:03–7:13 /km

Peak

The sharpest weeks. Hold the zone on the hard days, protect the easy ones.

Week 13Peak — consistency
54km
Mon
Easy run — Zone 2Zone 2
7.5 km · 50 min · 6:03–7:13 /km
Tue
Easy run + strides — Zone 2Zone 2
7.5 km · 50 min · 6:03–7:13 /km
Wed
Marathon-pace runZone 3
7 km · 42 min · 5:33–5:47 /km
4 km at 5:40 /km
Marathon-pace work. Target 5:40 /km. Controlled, even splits: exit each rep wanting more.
Fri
Easy run — Zone 2Zone 2
7.5 km · 50 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
24 km · 159 min · 6:03–7:13 /km
Week 14Peak — holding the volume
63km
Mon
Easy run — Zone 2Zone 2
9 km · 60 min · 6:03–7:13 /km
Tue
Easy run + strides — Zone 2Zone 2
9 km · 60 min · 6:03–7:13 /km
Wed
Marathon-pace runZone 3
7 km · 42 min · 5:33–5:47 /km
4 km at 5:40 /km
Marathon-pace work. Target 5:40 /km. Controlled, even splits: exit each rep wanting more.
Fri
Easy run — Zone 2Zone 2
9 km · 60 min · 6:03–7:13 /km
Sun
Marathon-pace long runZone 2–3
29 km · 181 min · 6:03–7:13 /km

Taper

Less volume, same intensity. Arrive fresh, not flat.

Week 15Taper — trust the work
53km
Mon
Easy run — Zone 2Zone 2
8.5 km · 56 min · 6:03–7:13 /km
Tue
Easy run + strides — Zone 2Zone 2
8.5 km · 56 min · 6:03–7:13 /km
Wed
Progressive tempoZone 3
6.5 km · 39 min · 5:16–5:31 /km
6:40 min at no faster than 6:03–7:13 /km
6:40 min at 6:03 → 5:16 /km
6:40 min at 5:16–5:31 /km
Hold back early. Finish honest.
Fri
Easy run — Zone 2Zone 2
8.5 km · 56 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
21 km · 139 min · 6:03–7:13 /km
Week 16Taper — sharpening
41km
Mon
Easy run — Zone 2Zone 2
6 km · 40 min · 6:03–7:13 /km
Tue
Easy run + strides — Zone 2Zone 2
6 km · 40 min · 6:03–7:13 /km
Wed
Goal-pace sharpenerZone 3
6.5 km · 41 min · 5:33–5:47 /km
3×
1 km at 5:40 /km
jog 1:30 min at no faster than 6:03–7:13 /km
Marathon-pace work. Target 5:40 /km. Controlled, even splits: exit each rep wanting more.
Fri
Easy run — Zone 2Zone 2
6 km · 40 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
16 km · 106 min · 6:03–7:13 /km
Week 17Taper — final cut
29km
Mon
Easy run — Zone 2Zone 2
4 km · 27 min · 6:03–7:13 /km
Tue
Easy run + strides — Zone 2Zone 2
4 km · 27 min · 6:03–7:13 /km
Wed
Continuous tempoZone 3
5.5 km · 33 min · 5:16–5:31 /km
15 min at 5:16–5:31 /km
Sustainable. Same pace at the end as at the start.
Fri
Easy run — Zone 2Zone 2
4 km · 27 min · 6:03–7:13 /km
Sun
Long run — Zone 2Zone 2
11.5 km · 76 min · 6:03–7:13 /km
Week 18Race weekRace week
17km + 42.2km race
Mon
Race-week easyZone 2
9 km · 60 min · 6:03–7:13 /km
Tue
Easy shakeoutZone 1
5 km · 33 min · 6:03–7:13 /km
Thu
Pre-race shakeoutZone 1
3 km · 20 min · 6:03–7:13 /km
Sun
Race day — 42.2 km
42.2 km

This is the flat version.

This plan doesn’t know you. It doesn’t know your Tuesday got busy, what your resting heart rate is doing, or that your last race said you’re fitter than you think.

The app does. It sets your real heart-rate zones, moves sessions when life breaks the week, and rebuilds the plan off a mid-block time trial. This page is the template. The app is the coach.

The plan above is yours. No catch.

This one is fixed. The app builds the same plan around your zones, your week and your race date, and two weeks of it costs nothing.

Download on the App Store

Or see what free covers first →

Questions

What pace is a sub-4-hour marathon?

5:41 per kilometre (about 9:09 per mile), held for the full 42.2 km. The hard part is holding it late, which is why this plan protects the easy weeks that build your durability.

How many days a week is this Marathon plan?

5 days a week. Easy runs, and from the build phase a quality session in most weeks. The rest is recovery, on purpose.

Is this Marathon plan good for beginners?

It suits a runner who already runs a little and wants to stop going medium-hard on everything. If you are brand new to running, build an easy base first, then start here.

Do I need a heart-rate monitor for this marathon plan?

No. Every run has a pace band and a zone. A heart-rate monitor just helps you hold the easy days honestly, which is exactly what the app adds on top of this plan.

Can I move the sessions around?

Carefully, yes. Keep the two hardest days apart. The static plan above can’t move itself. Reshaping around the week you actually had is part of the paid tier, and it keeps the easy/hard rhythm intact while it does it.

Why is so much of the plan easy running?

Because you can’t outrun your easy days. Running easy when it’s easy is what lets you run genuinely hard on the one day that earns it. The grey middle, medium-hard on everything, is where amateur runners stall and get injured.

Other free plans

Marathon · 16-week plan
Sub-2-Hour Half Marathon Plan
Sub-45 10K Training Plan