Your first 5K: an eight-week running plan from scratch

How much running does it actually take to cover five kilometres without stopping in two months? Three sessions a week, about ninety minutes in total, and most of that slower than you would expect. The plan below assumes you cannot currently run for two minutes straight, which is a perfectly ordinary starting point.

Before week one

The only real entry requirement is being able to walk for 30 minutes without discomfort. If that is a stretch at the moment, spend a fortnight walking and start the plan after that.

Trainers do not need to be expensive, but they should not be worn out either. If the midsole and outsole are visibly crushed on the inner or outer edge of the heel, get a different pair. Everything else — watch, heart rate strap, app — is optional.

If you are coming back after months or years away, the first thing to give way is usually tendons and joints rather than lungs, which is why a six-week return-to-training plan moves more slowly than your head wants it to.

Why it starts with running and walking

Your heart and lungs adapt within a few weeks. Tendons, ligaments and bone need months. That gap explains the most common beginner mistake: running as much as your breathing allows rather than as much as your shins can absorb.

Walk breaks are not a sign of weakness, they are a tool. They break the load into smaller pieces, keep the running pace low and extend the total time on your feet. That is why the walk break stays in this plan right up to week seven.

The eight-week plan

Three sessions a week, always with at least one rest day in between. Every session starts with a 5-minute brisk walk and ends with a 5-minute easy walk. The numbers below cover the main part only.

• Week 1: 1 minute running + 2 minutes walking, 8 times (24 minutes)
• Week 2: 2 + 2 minutes, 7 times (28 minutes)
• Week 3: 3 + 2 minutes, 6 times (30 minutes)
• Week 4: 4 + 2 minutes, 5 times; on the third session 5 + 2 minutes, 4 times
• Week 5: 6 minutes running + 90 seconds walking, 4 times (30 minutes)
• Week 6: 9 minutes + 90 seconds walking, 3 times; on the third session 12 + 2 + 12
• Week 7: 15 + 2 + 15; one session in the week is 20 minutes unbroken
• Week 8: first session 25 minutes without stopping, second an easy 12 + 2 + 12, third is your 5K

If a week feels far too hard, repeat it. Eight weeks is a framework, not a deadline — a ten-week plan that ends with a run beats an eight-week one that ends with an injury.

Do not try to make up a missed week with four sessions in the next one. A skipped run costs nothing; two doubled-up loads can cost a month.

On the day you run five kilometres, change nothing: same shoes, same breakfast, same pace as in training. Hold the first kilometre deliberately slow. Almost everyone runs it too fast and pays for it in the third.

Pace: slower than it feels right to go

Every run in the first seven weeks should be at a pace where you can say a full sentence without gulping for air. If you can only manage three or four words, you are going too fast.

For most people starting from zero, that means somewhere between 7 and 9 minutes per kilometre, occasionally slower than a brisk walk uphill. That is fine. The point of these eight weeks is teaching your body to absorb impact, not producing a nice number on an app.

If you run outdoors, pick flat or gently rolling ground. Descents load the quadriceps far harder than climbs do, so downhill training only makes sense once you have several months of steady running behind you.

Two strength sessions a week

Running on its own does not build strong legs. Two short strength sessions a week, 20 to 25 minutes each, make the closing weeks of the plan easier and cut the risk of overload.

Five exercises are enough: squats (or sit-to-stand from a chair) 3×8-12, lunges 3×8 per leg, calf raises 3×15 — non-negotiable, since the lower leg takes the most punishment — glute bridges 3×12 and a plank 3×30 seconds. It is worth learning squat technique from scratch early, because the same mechanics show up in every lunge and every flight of stairs.

Do strength on non-running days or straight after a run, but not the day before your longest run of the week.

Aches, fatigue and when to see a doctor

Muscle soreness a day or two after a session is normal and passes on its own. Sharp pain that appears during a run, builds while you keep going, or makes you limp is not.

The three most common beginner complaints are pain along the inner edge of the shin, pain under the kneecap, and a stiff Achilles tendon in the morning. All three usually come from adding distance too quickly. The first response is cutting your weekly volume by a third for a week or two, not stopping altogether.

If your sleep turns broken, your morning heart rate sits higher than usual and your appetite for training disappears, you are running a deficit; the warning signs of overtraining tend to show up faster in beginners than in experienced runners.

When to see a doctor

Speak to a doctor before continuing if you have chest pain, faintness or unusual breathlessness during easy effort; if you have known heart disease, high blood pressure or diabetes; if leg pain has not eased after 10 to 14 days of reduced training; or if the pain sits on one precise spot on a bone that is tender to touch.

The short version

• Three runs a week with a rest day between them is enough to reach 5K in eight weeks.
• Start with 1 minute running and 2 minutes walking, eight times, and lengthen the running block each week.
• Run slowly enough to speak in full sentences — for most people that is 7 to 9 minutes per kilometre.
• Add two short strength sessions a week, with calf raises and squats as the priority.
• Repeat a week if it is too hard; if pain builds while you run, stop and reduce your volume.