First 5K Race: What Should My Pace Be?

I am 51 years old and in fairly good shape (I work out at the gym) but I have not run in years. I am running a 5k in November. What would be a good pace to shoot for as I train and prepare for the race?

– Anonymous

Answer by Dom: Great question — and a sensible one to ask before you start training rather than after. I'll cover both your training paces and how to estimate your race pace, since you'll need both.

Here's what I'd walk you through:

1. The three training paces you need — and what they feel like
2. How to structure your weeks leading up to November
3. Two methods for estimating your 5k race pace
4. A word on pacing your first race

The Three Training Paces — and What They Feel Like

Most runners new to running make the mistake of going the same moderate speed on every run — not easy enough to recover, not hard enough to provide a real training stimulus. The good news is there's a much better structure, and it doesn't require fancy equipment.

Easy pace — this is your bread and butter. Conversational pace: you can speak in full sentences without gasping. It should feel almost embarrassingly slow at first. This is where you do most of your running — at least 80% of your weekly mileage. It builds your aerobic base, conditions your joints, and lets you recover between harder sessions. See the base running drills page for more on why easy running matters so much.

Tempo pace — "comfortably hard." You can speak a few words but not full sentences. This is roughly 25–30 seconds per mile slower than your 5k race pace — though you won't know that exactly yet. A good tempo session for a first-time 5k runner: 4 x 5 minutes at this effort with 2 minutes easy walking between each. See the tempo running page for detail.

Interval pace — hard. Short bursts at a pace you can't sustain for more than a couple of minutes. A beginner-friendly interval session: 30 seconds fast, 90 seconds easy, repeated 8–10 times. This trains your body to move efficiently at speed. See the interval running page for guidance.

How to Structure Your Training Weeks

You're returning to running after a break, so I'd start cautiously. Your gym fitness gives you a good cardiovascular base — but your tendons and joints haven't been loading in the same way, so don't assume your body is ready for what your lungs can handle.

For the first 6–8 weeks, run 3 times per week at easy pace only. Build up gradually until you can run 30–35 minutes non-stop comfortably. Once that's solid, you're ready for the next phase.

In the final 6 weeks before November, add one quality session per week — alternating tempo and intervals each week. Keep the other two runs easy. That gives you 3 runs per week total: one quality, two easy. Simple and effective for a first race. See the increasing mileage safely page before you start adding sessions.

Two Ways to Estimate Your 5K Race Pace

This is the question you were really asking, so here are two sensible approaches:

Method 1 — feel-based: Your 5k race pace sits between your tempo pace and your interval pace — closer to interval. Think of it as the fastest pace you could sustain for 20–35 minutes. Once you've done a few tempo and interval sessions, you'll develop a feel for where that pace lives. Race day adrenaline tends to push people a touch faster than they expect, which is fine — just don't go out at sprint pace in the first kilometre.

Method 2 — calculator-based: After a few weeks of training, use a running pace calculator to reverse-engineer your goal time. Enter different 5k targets and find one where the resulting easy, tempo, and interval paces closely match what you're actually running in training. For example — if your comfortable easy pace is around 10:30 per mile, your tempo is around 8:45, and your interval pace is around 8:00, a finish time of around 25:30–26:00 would line up well (using the 25–30-seconds-per-mile gap between tempo and 5k pace mentioned above).

For your first 5k, though, I'd genuinely encourage you not to fixate on a target time. Run the first 2k slightly more conservatively than you think you need to — it's very easy to go out too fast and suffer in the final kilometre. A steady, even-paced race almost always produces a better result than an exciting start and a gruelling finish.

Enjoy every bit of it. Your first 5k is a milestone — whatever the clock says.

Kind regards,
Dom

If you have run a race of another distance, my race conversion calculator can turn that result into a predicted 5K time and pace for your first 5K.

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