What is a tempo run?

The short answer

A tempo run is a continuous effort at a pace you could hold for about an hour in a race. It feels comfortably hard: controlled breathing, focus required, but not a sprint. Most runners describe it as "steady but working".

A classic version is 20 to 40 minutes at that effort, sandwiched between an easy warm-up and cool-down. It teaches your body to run fast while relaxed, which is exactly what race day demands.

How hard is comfortably hard?

If you race 5K at 5:00 per kilometre, tempo pace is usually around 15 to 25 seconds per kilometre slower – roughly 5:15 to 5:25. Over 10K to half marathon, the gap narrows. These numbers are estimates; the effort is the anchor.

You should be able to speak a short sentence, but not hold a conversation. If you can chat easily, you are running easy. If you are counting down the seconds, you are running too hard for a tempo.

A tempo run should feel like work you could repeat tomorrow – hard, but not a race.

Why tempo runs work

Tempo running improves the pace you can sustain before fatigue compounds. It raises the threshold at which effort starts to spiral, which is why it shows up in almost every training plan from 5K to marathon.

It is also efficient. One well-run tempo session per week is enough for most recreational runners. More is not better if it costs you the next day's running.

Shoes for tempo days

Tempo runs sit between easy days and race day, and the shoes follow. A lighter trainer with more responsive foam makes the pace feel natural; a plated tempo shoe adds a little propulsion without the full cost of a race shoe.

You do not need a dedicated tempo shoe to improve, but if you run faster sessions regularly, a second pair protects your daily trainer and makes the work feel more specific.

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