Spring is the most popular time to start running. The days are longer, the weather is warmer, and events like parkrun, local 5Ks, and charity runs provide accessible, low-pressure goals. If you have been thinking about running but have never done it — or have not run in years — this eight-week plan will take you from zero to a comfortable 5K finish with three sessions per week and a gradual progression that respects the time your body needs to adapt.
Weeks one and two alternate between walking and running in short intervals: one minute of running followed by two minutes of walking, repeated for 20-25 minutes. The running portions should feel conversational — if you cannot speak in short sentences, you are going too fast. These early sessions build the cardiovascular base and begin the structural adaptation process in your muscles, tendons, and joints. The walking intervals are not cheating; they are an essential recovery tool that allows you to accumulate more total exercise time than continuous running would permit at this stage.
Weeks three through five gradually shift the ratio toward more running and less walking: two minutes running, one minute walking in week three; three minutes running, one minute walking in week four; five minutes running, one minute walking in week five. By the end of week five, most beginners can run for five continuous minutes without distress — a milestone that feels modest but represents a genuine physiological transformation from where you started.
Weeks six through eight build toward continuous running. Week six introduces 10 minutes of unbroken running, week seven extends to 15-20 minutes, and week eight — race week — includes a dress rehearsal of 25 minutes of easy running before your target 5K event. Throughout the plan, the golden rules remain constant: never increase running time by more than one or two minutes per session, take at least one rest day between running days, and prioritise consistency over speed. Finishing a 5K — regardless of time — is the only goal that matters for your first race. Speed comes later, after the habit is established.