Half marathon plan, 8 weeks on 3 sessions — under 2 hours

8 weeks3 sessions a weekTarget 2 hours226 km in total

An 8-week half-marathon plan on three sessions a week to break 2 hours when the base is already there: quality, easy, long run to 18 km.

This plan is for you if…

  • Already running three times a week, pain-free, for at least two months.
  • Comfortable with an hour and a quarter of running and a 12 km long run.
  • A 10 km under 52 minutes within the last three months.
  • This is the tightest of the four: eight weeks on three sessions is a floor, not a margin. If in any doubt, take the twelve-week plan.

If one of these is not true, a longer plan will take you further than a short one followed halfway.

If you have to skip a session

Ill, exhausted or in pain, do not run: a plan absorbs a missed session, it does not absorb an injury. Drop the easy run first — it is the least specific. If it is the quality session or the long run that goes, do not move it to another day of the same week; pick the next week up where the plan is, never where you stopped.

Your paces for 2 hours

Pacemin/kmWhat it feels like
Easy6:30 – 7:00The pace most of this plan is run at. If you cannot hold a conversation, it is too fast.
Long run6:37In the firm third of the easy band, never outside it. On a three-hour run, never quicker than this.
Half-marathon pace5:36Half-marathon pace: race day over that distance, or the marker that brackets marathon pace.
5 km pace5:13A little faster than threshold: 5 km race pace. Strong, never maximal.

All 8 weeks, session by session

Week 1

Base31 km

Straight into it: 800 m repetitions in week one, because the base is assumed.

  1. 1

    Aerobic power67 min

    6 × 800 m at 5 km pace, 2 min recovery.

  2. 2

    Easy run45 min

    Conversational pace: you should be able to talk.

  3. 3

    Long run13 km

    13 comfortable km from start to finish. If it feels hard, it is too fast.

Week 2

Base29 km

Continuous threshold, twenty minutes. The long run reaches 14 km.

  1. 1

    Half-marathon pace50 min

    20 continuous minutes at Half-marathon pace.

  2. 2

    Easy run45 min

    Conversational pace: you should be able to talk.

  3. 3

    Long run14 km

    14 comfortable km from start to finish. If it feels hard, it is too fast.

Week 3

Build33 km

Repetitions move to 1,000 m, at 5 km pace rather than flat out, and the long run finishes at race-day pace.

  1. 1

    Aerobic power69 min

    5 × 1000 m at 5 km pace, 150 s recovery.

  2. 2

    Easy run45 min

    Conversational pace: you should be able to talk.

  3. 3

    Long run15 km

    15 km, the last 4 at Half-marathon pace.

Week 4

Build26 km

The only lighter week in the plan. It is not optional.

  1. 1

    Half-marathon pace50 min

    20 continuous minutes at Half-marathon pace.

  2. 2

    Easy run40 min

    Conversational pace: you should be able to talk.

  3. 3

    Long run12 km

    12 comfortable km from start to finish. If it feels hard, it is too fast.

Week 5

Specific34 km

Specific block: no more short repetitions. Threshold, in two fifteen-minute blocks, prepares half-marathon pace.

  1. 1

    Half-marathon pace68 min

    2 × 15 minutes at Half-marathon pace, 4 minutes recovery.

  2. 2

    Easy run40 min

    Conversational pace: you should be able to talk.

  3. 3

    Long run17 km

    17 km, the last 6 at Half-marathon pace.

Week 6

Specific39 km

The peak, and it is specific: 3 × 3 km at goal pace, then eighteen kilometres with six at that same pace.

  1. 1

    Half-marathon pace89 min

    3 × 3 km at Half-marathon pace, 3 minutes recovery.

  2. 2

    Easy run40 min

    Conversational pace: you should be able to talk.

  3. 3

    Long run18 km

    18 km, the last 6 at Half-marathon pace.

Week 7

Taper25 km

Taper, one week only. Twenty minutes at goal pace, nothing more.

  1. 1

    Half-marathon pace50 min

    20 continuous minutes at Half-marathon pace.

  2. 2

    Easy run35 min

    Conversational pace: you should be able to talk.

  3. 3

    Long run12 km

    12 comfortable km from start to finish. If it feels hard, it is too fast.

Week 8

Race11 km

Race week. You maintain; you no longer build.

  1. 1

    Pace reminder47 min

    4 × 400 m at Half-marathon pace, 2 min recovery.

  2. 2

    Easy run25 min

    Conversational pace: you should be able to talk.

  3. 3

    Half marathon21.0975 km

    Race day.

Put this plan in your calendar

Stibia exports this plan to your watch, on the days you run, with your long session on the day you choose, and the plan ending on your race date.

Create a free account

This plan is general training material and does not replace medical advice. If it hurts, stop and see someone.