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Training plan

14-week half marathon training plan (variations included)

A 14-week half marathon training plan with week-by-week structure, workouts, adaptation rules, and a pace calculator. Variations are included on one page.

Updated Jul 31, 2026

Compare the plan

Start here

Choose your weekly rhythm

Choose days per week, review how the plan builds, then set your pace and fueling targets.

1. Choose days per week

4 days/week (Beginner-friendly)

The first option is an example, not a personal recommendation. Choose the rhythm that fits your current training and recovery.

2. Scan the phase map

Base → build → peak → taper

Use the condensed view, then open the full week-by-week table only when you need detail.

Jump to week-by-week

3. Set your targets

Pace and fueling targets

Use a calculator now so you can practise the numbers before race week.

Jump to tools

At a glance

Plan length

14 weeks

Includes base, build, peak, cutback, and taper weeks.

Weekly rhythm

36 days/week

Choose one variant and follow it for 2 weeks before tweaking.

Typical session time

Easy: ~45m • Long: ~105m

Prefer repeatable training time over one unusually demanding session.

Before you begin

  • You can run 30 minutes comfortably 3–4×/week.
  • You can complete a 60–75 minute easy session and recover normally over the next two days.
  • You’re willing to keep easy days easy so workouts stay high-quality.

Starting example

4 days/week (Beginner-friendly)

Choose this only when it matches your recent consistency, weekly schedule, and recovery.

  • Best if your schedule is tight or you’re building durability.
  • Keep workouts conservative; consistency is the win.

Safety first

This is general training information, not medical advice.

  • Pain that changes your gait (scale down and get assessed).
  • A rapidly increasing injury history with volume increases.
  • Illness symptoms that worsen with training load.

Adaptive AI coach for iPhone

Let your coach adapt the plan.

Your adaptive AI coach reviews completed work and adjusts upcoming sessions after missed training, poor sleep, unusual fatigue, or a disrupted week.

Choose days per week

Pick the weekly rhythm that fits your current training, schedule, and recovery. Review it after two stable weeks.

4 days/week (Beginner-friendly)

4 days/week/Beginner
Starting example
  • Best if your schedule is tight or you’re building durability.
  • Keep workouts conservative; consistency is the win.

3 days/week (Lower-frequency option)

3 days/week/Beginner
  • Best if you’re time-limited, returning from time off, or managing impact.
  • Protect the long run. Keep the workout controlled. Add strength on 1–2 non-run days.

5 days/week (Balanced week)

5 days/week/Intermediate
  • A strong default: enough volume to progress, enough recovery to absorb it.
  • One workout + one long run focus per week is plenty.

6 days/week (Advanced, recovery-dependent)

6 days/week/Advanced
  • Only if your recovery stays stable for 2–3 weeks in a row.
  • The extra day should be truly easy or short recovery.

Decide whether this 14-week half-marathon plan fits

Fourteen weeks gives enough runway to build durable frequency before the most specific half-marathon work. Use the extra time to separate progressions and learn recovery, not to schedule fourteen identical weeks.

Use current evidence, not the finish time you hope to run. Compare the opening week with the last four repeatable weeks: running frequency, longest recent run, faster work, strength, symptoms, sleep opportunity, and next-day function. A returning runner can use the first phase to stabilise easy volume, but the first week must still fit current capacity.

Readiness signalAccept the opening week whenAdd foundation or step down when
Frequencythe first-week run count is familiarthe plan adds a day you have not sustained
Long runrecent duration and recovery are comparablethe first long run already feels like a test
Faster workone controlled session is absorbed wellevery faster session becomes maximal
Strengthtechnique remains sound without lasting sorenesslifting removes the next key run
Life loadthe week fits work, care, travel, and sleepcompletion depends on perfect circumstances

This page is an educational framework, not an automatic prescription. A calculator pace, old personal best, or single strong workout does not certify readiness.

Protect the main tradeoff

The fourteen-week tradeoff is foundation versus goal-pace impatience. Early controlled work should support the later race block rather than prove a finish time.

Give every session one job. Easy running develops repeatable volume; controlled quality work develops the chosen race demand; strength supports force and tissue capacity; recovery makes the next useful session possible. Avoid turning every run into medium-hard work.

Give the runway four phases

Use four foundation weeks, four development weeks, four specificity weeks with a reduced confirmation week, and two taper weeks adjusted to completed training.

  1. Foundation: stabilise frequency, easy duration, strength technique, and normal recovery.
  2. Development: progress one important variable while the rest of the week remains repeatable.
  3. Specificity: rehearse the demands that distinguish this event and duration.
  4. Taper: reduce fatigue while keeping familiar movement and a small amount of rhythm.

Taper research supports lower volume while retaining familiar intensity and frequency, but it does not prescribe one universal final week. Keep the principle and adjust from completed work.

Use a weekly evidence card

Record duration, surface, terrain, perceived effort, symptoms, sleep opportunity, strength load, and next-day function. Then choose progress, hold, reduce, or replace:

  • Progress when the key work was controlled and ordinary function returned.
  • Hold when the work was completed but effort or recovery cost rose.
  • Reduce after illness, abnormal fatigue, or pain that changes movement.
  • Replace when weather, surface, travel, or schedule makes the original job unsafe.

Concurrent-training evidence supports building endurance and strength together, while sequence and fatigue still affect the cost. Remove optional load before removing the one session that best answers the current training question.

Work through one real decision

If consistency improves through week four but work travel removes one midweek run, keep the long run and one quality session, move strength away from the quality day, and hold total volume.

Write the decision before the next week begins. “Do more” is not a usable adjustment. Name the session you will retain, the variable you will reduce, and the evidence that allows normal progression to resume.

Handle a missed or disrupted week

A disruption in the foundation phase can be met by extending it. A disruption in specificity should reduce the peak rather than push hard work closer to race day.

Do not stack missed long running, faster work, and heavy strength into the next seven days. Resume from current capacity, protect the next essential session, and rebuild the sequence. A calendar cannot absorb load on your behalf.

Rehearse the distinct race job

Use a course-aware rehearsal that pairs pace band, fueling, and the planned first 5K. Finish with control; the objective is information, not exhaustion.

Use a bounded rehearsal and stop before it becomes a race. Record what the session taught you about pacing, equipment, fueling, terrain, and recovery. Pacing research describes population patterns; your completed sessions still own the individual decision.

Useful next steps

Use these pages to solve the next decision rather than collecting more schedules.

Safety boundary

Stop and seek qualified care for chest pain, fainting, confusion, severe breathing difficulty, or pain that changes normal movement. Seek professional guidance for persistent symptoms, recovery that is not returning, or uncertainty after illness or injury.

This plan is educational and not medical advice, an individualized prescription, or a guaranteed race result.

Week by week

Structure you can scan

Use this as your decision map: what matters this week, what the long run is doing, and where you should back off.

BaseJump

Weeks 14

Build consistency and durable easy volume.

Long session: 1h long run (steady finish when recovered) • Cutbacks: 1

BuildJump

Weeks 59

Add quality while protecting recovery.

Long session: 1h 24m long run (steady finish when recovered) • Cutbacks: 1

PeakJump

Weeks 1012

Train race-specific pacing and fueling.

Long session: 1h 53m long run (steady finish when recovered) • Cutbacks: 1

TaperJump

Weeks 1314

Reduce load; keep rhythm; arrive fresh.

Long session: 1h 40m long run (steady finish when recovered)

View week-by-week details
Week 1Base

Build consistency and durable easy volume.

Long session
1h long run (steady finish when recovered)
Key workouts
Strides + controlled aerobic / Hill sprints (short) + strength
Week 2Base

Build consistency and durable easy volume.

Long session
1h 6m long run (steady finish when recovered)
Key workouts
Strides + controlled aerobic / Hill sprints (short) + strength
Week 3Base

Build consistency and durable easy volume.

Long session
1h 12m long run (steady finish when recovered)
Key workouts
Strides + controlled aerobic / Hill sprints (short) + strength
Week 4BaseCutback

Build consistency and durable easy volume.

Long session
1h 6m long run (steady finish when recovered)
Key workouts
Strides + controlled aerobic / Hill sprints (short) + strength
Week 5Build

Add quality while protecting recovery.

Long session
1h 24m long run (steady finish when recovered)
Key workouts
Tempo or cruise intervals / Long-run progression
Week 6Build

Add quality while protecting recovery.

Long session
1h 30m long run (steady finish when recovered)
Key workouts
Tempo or cruise intervals / Long-run progression
Week 7Build

Add quality while protecting recovery.

Long session
1h 35m long run (steady finish when recovered)
Key workouts
Tempo or cruise intervals / Long-run progression
Week 8BuildCutback

Add quality while protecting recovery.

Long session
1h 26m long run (steady finish when recovered)
Key workouts
Tempo or cruise intervals / Long-run progression
Week 9Build

Add quality while protecting recovery.

Long session
1h 47m long run (steady finish when recovered)
Key workouts
Tempo or cruise intervals / Long-run progression
Week 10Peak

Train race-specific pacing and fueling.

Long session
1h 53m long run (steady finish when recovered)
Key workouts
Threshold + speed endurance / Long run with controlled finish
Week 11Peak

Train race-specific pacing and fueling.

Long session
1h 59m long run (steady finish when recovered)
Key workouts
Threshold + speed endurance / Long run with controlled finish
Week 12PeakCutback

Train race-specific pacing and fueling.

Long session
1h 46m long run (steady finish when recovered)
Key workouts
Threshold + speed endurance / Long run with controlled finish
Week 13Taper

Reduce load; keep rhythm; arrive fresh.

Long session
1h 40m long run (steady finish when recovered)
Key workouts
Short tempo + strides / Easy aerobic + sleep focus
Week 14Taper

Reduce load; keep rhythm; arrive fresh.

Long session
1h 15m long run (steady finish when recovered)
Key workouts
Short tempo + strides / Easy aerobic + sleep focus

Workout library

The sessions you repeat

You don’t need 50 workouts. You need a small library that you execute consistently, then progress safely.

Easy aerobic run

Purpose: Build volume without accumulating fatigue.

Prescription: 30–60 min at conversational effort. If you can’t talk in full sentences, it’s too hard.

Substitutions

  • Bike or easy elliptical for the same time if impact is an issue.

Red flags

  • Pain that changes your gait.
  • Easy pace drifting harder to hold the same effort.
Strides + drills

Purpose: Improve mechanics and economy without a heavy metabolic cost.

Prescription: After an easy run: 6–10 × 15–20 sec fast-but-relaxed, full walk/jog recovery.

Substitutions

  • 6–8 × 20 sec hill strides for reduced impact.

Red flags

  • Sprint-like intensity that leaves you sore.
  • Tight hamstrings or sharp calf pain.
Tempo / cruise intervals

Purpose: Raise sustainable pace and teach controlled discomfort.

Prescription: 2–4 × 8–12 min at ‘comfortably hard’ with 2–3 min easy between.

Substitutions

  • 20–30 min steady tempo continuous if you pace well.

Red flags

  • Breathing out of control early.
  • Needing to ‘surge’ to hold the last reps.
Interval session (VO₂-ish)

Purpose: Sharpen speed and economy for faster running at a lower cost.

Prescription: 5–8 × 3 min hard with 2–3 min easy; stay controlled, finish with form.

Substitutions

  • 6–10 × 400m on the track with equal jog recovery.

Red flags

  • All-out reps.
  • Form collapse or sharp pains.
Long run (easy with structure)

Purpose: Build durability and rehearsals for race-day pacing and fueling.

Prescription: Mostly easy. When stable: finish the last 15–25 min steady (not a race).

Substitutions

  • Split long run (AM/PM) on high-stress weeks; keep total time similar.

Red flags

  • Long-run pace creeping; next-day fatigue lasting >48h.
  • Fueling causing repeated GI issues (adjust and practice).
Threshold + fast finish

Purpose: Practice the exact intensity you want to execute on race day.

Prescription: 3 × 10 min threshold, then 10–15 min steady finish if you’re recovered.

Substitutions

  • Progression run: easy → steady → controlled hard (only when recovered).

Red flags

  • Needing to ‘push’ early.
  • Shin/calf pain that escalates with pace.
Strength (short + consistent)

Purpose: Support durability and running economy with minimal interference.

Prescription: 2×/week, 20–35 min: hips, calves, hamstrings, trunk. Leave 1–2 reps in the tank.

Substitutions

  • Bodyweight circuit if you’re traveling.

Red flags

  • Heavy DOMS that ruins key sessions.
  • Form breakdown under load.

Adaptation rules

What to do when life happens

When sleep, scheduling, pain, or fatigue changes, use these rules to adjust the week.

Missed workout

  • Don’t ‘make up’ missed sessions by doubling hard days.
  • If you miss one workout: keep the long run, skip the extra intensity.
  • If you miss a week: repeat the last week you completed confidently.

Low sleep week

  • Cut intensity before you cut easy volume: keep it aerobic.
  • Shorten the long run by 15–25% if sleep is poor for multiple nights.
  • Add one extra rest day if stress is high.

Fatigue signals

  • If your easy pace feels hard: keep the day easy and shorten duration.
  • If soreness persists >48h: remove the next hard session.
  • If motivation tanks + HR drifts: treat it like a recovery week.

Pain or injury

  • Pain that changes form is a stop signal — do not ‘push through’.
  • Swap running for low-impact cardio until pain-free in daily life.
  • Return with short easy runs; add intensity last.

Travel week

  • Protect one key session: either the long run or the workout — not both.
  • Use time-based training (minutes) when terrain/schedule changes.
  • Keep strength micro-sessions (10–15 min) instead of skipping completely.

Tools

Numbers to train with

Pick one tool, generate outputs, then plug them into your training week.

Loading pace calculator…
Loading race time predictor…

Evidence (high level)

Why this structure works

  • Consistency beats hero sessions: durable aerobic volume is the engine.
  • Cutback weeks create space to absorb training before fatigue builds too far.
  • A small workout library repeated with progression is more effective than endless novelty.
  • Fueling practice is a skill — you train it like pacing.

FAQs

Is this 14-week half-marathon plan enough time?

It can be when the opening frequency, duration, and quality match current training. Add foundation time when week one already requires a jump.

How many runs should I do each week?

Start with a frequency you already tolerate. Add a day only when it has a clear job and the current week remains repeatable.

Can I make up a missed workout?

Usually resume from current capacity instead of stacking missed load. Protect the next essential session and the following week.

Where should strength training go?

Place it where technique remains sound and soreness does not undermine the key running sessions. Reduce volume before race week.

How should I choose training pace?

Use current fitness, effort, terrain, weather, and the session job. A goal pace is a reference, not a readiness certificate.

How should I taper?

Reduce fatigue while retaining familiar frequency and a small amount of controlled rhythm. Avoid new exercises, equipment, or maximal tests.

Keep going

Sources