3 months

Run a 10k in 3 months

3 runs a week, one of them long

This plan assumes you can already run 5k, or 30 minutes, without stopping. If you can't yet, start with the 5k protocol — 10k on an unbuilt base is how people meet their physiotherapist.

The structure is simple and boring on purpose: two easy runs and one long run each week, with the long run growing by roughly ten percent a week and a down week every fourth week. Almost all of it is slower than you'd like.

The protocol

  1. Weeks 1–3

    Build the long run

    • Two easy 25-minute runs, plus a long run of 35, 40, then 45 minutes.
    • Easy means conversational. If you're running every session at the same effort, you're doing one workout three times.
    • Long runs go slower than the easy runs, not faster. This is the part everyone gets backwards.
  2. Week 4

    Down week

    • Cut everything by a third: two 20-minute runs and a 30-minute long run.
    • You'll feel like you're losing fitness. You're absorbing it — this is where the adaptation lands.
    • Good week to check your shoes. Most road shoes are done between 500 and 800 km.
  3. Weeks 5–7

    Past 5k, into new distance

    • Easy runs go to 30 minutes; long runs go 50, 55, then 60 minutes.
    • Walk breaks in the long run are allowed and cost nothing. Take one every 15 minutes if it helps.
    • Start drinking a little water before longer runs. You'll notice the last 15 minutes if you don't.
  4. Week 8

    Second down week

    • Two 25-minute runs and a 40-minute long run.
    • Add one short set of strides — 4 × 20 seconds fast, walking back between — at the end of one easy run.
    • Strides are the only fast running in this plan, and they're there for form, not fitness.
  5. Weeks 9–11

    Race-distance confidence

    • Long runs of 65, 70, then 60 minutes. Somewhere in there you'll cover 10k without ceremony.
    • Keep the easy runs genuinely easy. The temptation to race yourself peaks now.
    • Practise the race morning once: same breakfast, same time, same shoes.
  6. Week 12

    Taper and run it

    • One easy 30-minute run, one 20-minute run with two strides, then two rest days.
    • Run the 10k. First 3km deliberately slow, middle 4km steady, last 3km however you feel.
    • Whatever the time is, it's a baseline, not a verdict.

How you'll know it's working

  • A 5k stops being a session and starts being a warm-up.
  • You finish the long run tired but able to talk.
  • Your easy pace gets quicker while the effort stays the same.

When you miss a day

One missed long run doesn't need to be made up — repeat the last one and carry on. Miss two weeks and Mosey rolls the plan back a fortnight rather than pushing you into the distance your legs haven't earned yet.

How Mosey helps

You don't have to hold the plan in your head.

Reading a protocol is the easy part. Mosey turns this one into scheduled days, adjusts it when your week falls apart, and keeps the streak alive while it does.

Request Early Access
12 day streak 2 mosey-days left

Life happened on Wednesday. I trimmed Thursday down — the plan still lands on time.

Questions

Can I do this in 8 weeks?

If you're already comfortable at 5k and running three times a week, yes — drop one build block and one down week. From a standing start, no.

How slow is 'easy'?

Slow enough to speak a full sentence. For most people that's 60–90 seconds per kilometre slower than their 5k pace, and it feels wrong for the first month.

What if my knees hurt?

Take the session off and swap in a walk. Pain that shows up mid-run and worsens is a stop sign, not something to run through — and persistent knee pain is a physio's job, not a plan's.

Early access

Start this one with Mosey.

We're opening in small waves. Leave your email and we'll come and get you.