Half Marathon Training Plan: Free 12 Week Beginner Plan

Free beginner half marathon plan

12 week beginner half marathon training plan

This is the simple version: print the plan, follow the week, and do not worry about pace math. It uses four run days, two rest days, one cross training or light strength day, and a long run that builds to 10 miles before race day.

Need custom dates? Build a custom plan
12 weeksBest when race day is about three months away.
4 runs weeklyTuesday, Thursday, Saturday, and Sunday.
2 rest daysMonday and Friday stay easy on purpose.
10 mile peakYour longest training run before the race.

Who this beginner half marathon plan is for

This plan is best for a first half marathon if you can already run about 3 miles at an easy pace. You do not need to be fast. You just need enough base fitness that the first week does not feel like a shock. It is not a couch to half marathon plan.

Good fit

  • You want to finish your first half marathon.
  • You can run a few short runs each week.
  • You like a simple plan without pace math.

Use the custom plan instead

  • Your race is not 12 weeks away.
  • You have a goal time.
  • You need different running days.

Start smaller first

  • You cannot run 3 miles yet. Start with the 5K training plan first.
  • Your weekly running is not consistent yet.
  • You have pain that changes how you run.
Coach note For a first half marathon, the big win is not one perfect workout. It is stacking enough steady weeks that race day feels possible, not panicked.

How the weekly schedule works

The plan uses the same rhythm each week so you are not guessing. Monday and Friday are rest days. Wednesday is cross training or light strength. Sunday is the long run. The other runs should feel comfortable enough that you are not gasping.

Easy runs

These build fitness without beating you up. Keep them relaxed. If you need short walk breaks in the first few weeks, that is fine.

Steady run

On some weeks, Thursday is steady. That means a little firmer than easy, not a workout that wrecks your Friday.

Long run

This is the most important run of the week. Keep it slow. The point is time on your feet, not proving your race pace in training.

Rest days

Rest days are part of the plan. They help your legs absorb the training and keep the long run from turning into a grind. Read the recovery days guide if you are not sure when to back off. If life gets busy, protect rest days rather than cramming workouts together.

Cross training

Use cycling, swimming, walking, elliptical, yoga, or easy strength. Keep it light enough that you can still run well the next day. For simple strength ideas, start with strength training for runners.

12 week beginner half marathon plan

The schedule below assumes Sunday is your long run day. Move the days around if you need to, but try to keep one easy or rest day before and after the long run.

WeekMondayTuesdayWednesdayThursdayFridaySaturdaySundayTotalFocus
1Rest3 miles easy30 min cross training2 miles easyRest2 miles easy3 miles long run10 milesFind your easy pace
2Rest3 miles easy30 to 35 min cross training2 miles easyRest2 miles easy4 miles long run11 milesKeep the long run relaxed
3Rest3 miles easy35 min cross training2 miles steadyRest3 miles easy5 miles long run13 milesBuild confidence
4Rest2 miles easy30 min cross training3 miles easyRest2 miles easy4 miles long run11 milesCutback week
5Rest3 miles easy35 to 40 min cross training3 miles steadyRest3 miles easy6 miles long run15 milesPractise slow long runs
6Rest3 miles easy40 min cross training3 miles steadyRest3 miles easy7 miles long run16 milesStay patient
7Rest3 miles easy35 min cross training4 miles easyRest3 miles easy5 miles long run15 milesCutback week
8Rest4 miles easy40 min cross training4 miles steadyRest3 miles easy8 miles long run19 milesTest race day breakfast
9Rest4 miles easy40 to 45 min cross training4 miles steadyRest4 miles easy9 miles long run21 milesPractise fueling and fluids
10Rest4 miles easy35 to 40 min cross training5 miles steadyRest4 miles easy10 miles long run23 milesPeak long run
11Rest3 miles easy30 min cross training4 miles easyRest3 miles easy6 miles long run16 milesTaper begins
12Rest2 miles easy20 to 30 min easy walk or cross training2 miles easyRestRest or 15 min shakeoutRace day 13.1 miles4 miles plus raceStart calm
How hard should the runs feel? Most runs should feel easy enough that you can talk without gasping. This is a finish-focused beginner plan, so the running weeks build from about 10 miles to 23 miles before taper. If you are training for a time goal, use the custom plan creator instead.

Long run progression

The long run builds confidence for race day. You do not need to run 13.1 miles before the race. For many first time half marathoners, a 10 mile long run is enough to prove the distance is within reach while still leaving room to recover.

Week 1
3 miles
Week 2
4 miles
Week 3
5 miles
Week 4
4 miles
Week 5
6 miles
Week 6
7 miles
Week 7
5 miles
Week 8
8 miles
Week 9
9 miles
Week 10
10 miles
Week 11
6 miles
Week 12
Race day

Why there are cutback weeks

Weeks 4 and 7 pull the long run back on purpose. These weeks help your legs absorb the work before the next build.

When to use walk breaks

Walk breaks are fine on long runs, especially in the first half of the plan. Keep them planned and calm instead of waiting until you are struggling.

What to do if you miss a week

Missing a few runs is normal. Do not try to make up every mile. That is usually how a manageable gap turns into sore calves, sore shins, or a skipped long run.

If you miss one easy run

Skip it and continue with the plan. One easy run will not change your race.

If you miss the long run

Do not squeeze it in the day before another hard or long run. Move on, or repeat the week if you have extra time.

If you miss a full week

Repeat the missed week if your race allows it. If race day is close, use the custom plan creator so the remaining weeks fit better.

Printable half marathon training plan

Use the button at the top of the page to print this plan or save it as a PDF. The print version removes the navigation and extra link cards so the weekly table is easier to read.

Want a plan that matches your race date?

This static plan is best when you want a simple 12 week schedule. If your race is 8 weeks away, 16 weeks away, or you have a goal time, use the custom builder instead.

Simple race day tips for your first half marathon

Start slower than you want

The first 3 miles should feel controlled. If you feel amazing at mile 9, that is when you can decide whether to press.

Do not test new gear

Use the shoes, socks, shorts, bra, watch, and fuel you tested during long runs. Race day is not the day to find out your shorts rub.

Keep fueling boring

For runs over an hour, practise what you will eat or drink. Keep it boring and repeat the setup that worked in training.

Beginner half marathon plan FAQ

Can a beginner train for a half marathon in 12 weeks?

Yes, if you can already run about 3 miles and you can train consistently. If you cannot run 3 miles yet, start with a 5K training plan first.

How many days per week should I run?

This plan uses 4 run days per week. That gives you enough running to build endurance while still leaving room for rest and cross training.

Do I need to run 13.1 miles before race day?

No. A 10 mile long run is enough for many first time half marathoners. Race day adds the final piece after the taper.

What pace should I run?

Most runs should be easy. If you want a pace based plan or goal finish time, use the custom training plan creator.

Is this enough mileage for a first half marathon?

For a finish-focused first half marathon, yes for many runners. If you want a faster finish time or you already run higher mileage, use a longer or custom plan.

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