Getting started with running: your first 5 km

Starting to run is one of the best decisions for your health — as long as you start gradually. The main mistake beginners make: going too fast and too often, which leads to fatigue or injury. Here's how to start smart.

The golden rule: alternate walking and running

At the beginning, your heart is ready long before your tendons and joints are. To let them adapt, alternate slow running and walking: for example 1 minute running / 1 minute walking, repeated 8 to 10 times. From session to session, you extend the running portions and reduce walking, until you can hold 30 minutes continuously.

What pace should you run at?

Much too fast is the classic mistake. You should be able to hold a conversation while running: if you're so out of breath you can't talk, slow down (or walk). This "easy" pace builds your base endurance without exhausting you. This is the 80/20 principle.

How many times a week?

Aim for 3 sessions per week, spaced at least one rest day apart. Rest is not wasted time: it's during recovery that your body gets stronger. Three regular outings are better than five outings followed by quitting.

An 8-week progressive plan

• Weeks 1-2: 6 × (1 min running / 1 min 30 walking).
• Weeks 3-4: 6 × (2 min running / 1 min walking).
• Weeks 5-6: 4 × (5 min running / 1 min 30 walking).
• Week 7: 2 × (10 min running / 2 min walking).
• Week 8: 30 min continuous running — you're ready for your first 5 km!

Avoiding injuries from the start

Increase your load gradually (no more than ~10% extra volume per week), choose good shoes, and listen to unusual pain. See our injury prevention guide.

Keep motivation through your data

Seeing your progress is the best engine. Sports Coach AI analyzes your first outings (via your watch or phone) and proposes, each week, sessions tailored to your real progress — without ever pushing you to go too fast too soon.