How Slow Is Too Slow When You’re Getting Back Into Running?

One of the most common concerns runners have when they’re restarting is this:

“Am I running too slow for this to even count?”

If you’ve ever checked your watch mid-run and felt slightly embarrassed by the pace staring back at you, you’re not alone.

I used to feel that way too.

When I first started running, I was convinced that I had to reach a certain pace before I could call myself a “real runner.” If my pace looked slower than other runners I followed online, it felt like I was somehow doing it wrong.

But over time, and especially as I started learning more about training, I realized: Most effective running actually happens at a pace that feels surprisingly slow.

And in many cases, that “slow” pace is exactly what helps runners build the consistency and endurance they’re looking for. 

Why running slow is actually part of good training

In running, we often talk about training zones.

Training zones are ranges of effort that correspond to how hard your body is working. These zones are typically based on heart rate or perceived effort.

The most important zone for most runners, especially those building or rebuilding a running habit is Zone 2.

Zone 2 is often described as: 

• Comfortable

• Sustainable

• Conversational

It’s the intensity where your body can keep going for a long time without accumulating too much fatigue.

This is also the zone where many important endurance adaptations happen. 

What Zone 2 actually means

At a physiological level, Zone 2 training develops your aerobic system.

Without getting overly technical, this is where your body becomes more efficient at: 

• Using oxygen to produce energy

• Burning fat as fuel

• Building mitochondria (the “energy factories” of your cells)

• Improving endurance and recovery

These adaptations are what allow runners to gradually run longer and more comfortably over time.

And here’s the key point: Most endurance training should happen in this zone.

Many coaches recommend that roughly 70–80% of your running stays in an easy aerobic effort like Zone 2.

The faster workouts—the intervals, tempo runs, or races—are only a small portion of overall training. 

How to know if you’re actually in Zone 2

You don’t need complicated tools to stay in the right effort zone. Here are three simple ways to check. 

1. The conversation test

This is the easiest rule of all.

If you can speak in full sentences while running, you’re likely in an easy aerobic zone.

If you can only say a few words at a time, you’re probably pushing into a harder effort. 

2. The breathing test

Pay attention to how your breathing feels.

Zone 2 breathing usually feels: 

• Controlled

• Rhythmic

• Sustainable

If your breathing becomes heavy or strained, you’re likely drifting into higher zones. 

3. Heart rate

If you wear a watch with heart rate tracking, Zone 2 is typically around 60–70% of your maximum heart rate.

But heart rate monitors aren’t necessary. Many runners successfully train by feel alone. 

The mistake many runners make when they restart

One of the biggest reasons runners struggle when getting back into running is that they run every run too hard.

They think 

• faster means better

• sweating more means progress

• pushing harder means improvement

But in reality, running too hard too often usually leads to: 

• burnout

• injuries

• inconsistent training

Ironically, the runners who make the most progress are often the ones who are willing to slow down enough to stay consistent. 

The mental shift that helped me

At some point in my own running journey, I had to let go of something that was quietly holding me back.

I was too focused on my pace. I would compare my pace to other runners, or to what I thought it should be. But eventually I realized something freeing: No one actually cares about your pace.

Other runners are focused on their own run, their own breathing, their own training. Once I stopped worrying about looking “fast enough,” running became much more enjoyable.

And interestingly, that’s also when my endurance started improving the most. 

So… how slow is too slow?

For most runners building or rebuilding their base, the answer is simple: If you’re moving forward and staying consistent, it counts.

If slowing down allows you to: 

• finish your runs feeling good

• run again a few days later

• build a weekly rhythm

then that pace is doing exactly what it should. 

A simple guideline when you’re getting back into running

If you’re restarting a running routine, try this approach: Focus on effort, not pace.

Aim for runs where you feel like you could continue for a while if you needed to.

You should finish most runs feeling like: 

• you could have gone a bit longer

• you’re not completely exhausted

• you’re looking forward to the next run

That’s a much better indicator of progress than what your watch says. 

Closing thought

Running doesn’t have to be fast to be effective.

In fact, the slower, easier miles are often the ones that quietly build the strongest runners over time.

So if you’re getting back into running and your pace feels slower than you expected, you’re probably not doing it wrong.

You might actually be doing it right.