Running Training Paces Explained: Easy, Tempo, Interval

Conversational — you can speak in full sentences. This should be the majority of your weekly mileage, including the long run. Easy running builds the aerobic engine that every distance depends on. Most runners run their easy days too fast; slowing down is often the single biggest improvement you can make.

The steady, controlled effort you'd hold for a marathon. Practising it teaches your body to burn fuel efficiently and dials in race-day rhythm. It feels comfortable early and honest late.

Comfortably hard — roughly the effort you could hold for about an hour of racing. Tempo runs raise the point at which fatigue sets in, so you can hold faster paces for longer. This is the highest-value workout for most distance runners.

Hard, around 3K–5K effort, run as repeats of 3–5 minutes with recovery jogs. Intervals develop your VO2max — the ceiling on your aerobic power. They hurt, but a little goes a long way.

Fast and smooth, around mile effort, in short bursts. Reps sharpen turnover, running economy, and form. Even a few 15–20 second strides after an easy run pay off.

Your paces come from your current fitness. Enter a recent race time (or a goal) into the anystride pace calculator and it computes your easy, marathon, threshold, interval, and rep paces, plus equivalent times at every distance. Re-check every few weeks as you get fitter.