Tempo Runs: The Workout That Made Me Faster

One speed workout per week was part of my 24-week plan. Here's how tempo runs work and why they're non-negotiable.

By Alex · 6 min read

My 24-week training plan had one simple structure:

  • 1 long run per week
  • 1 speed workout per week
  • Easy runs 2 minutes slower than race pace

That speed workout was usually a tempo run. Here's why they work and how to do them right.

What Is a Tempo Run?

A tempo run is a sustained effort at "comfortably hard" pace—faster than easy, slower than racing. The goal is to run at or near your lactate threshold: the pace where lactate production and clearance are balanced.

The feeling: You can speak in short phrases, but not full sentences. It's challenging but sustainable.

Why Tempo Runs Work

At threshold pace, you're training your body to:

  1. Clear lactate more efficiently - Push back the point where you "bonk"
  2. Improve running economy - Become more efficient at faster paces
  3. Build mental toughness - Practice holding discomfort
  4. Race-specific fitness - Half marathon pace is close to threshold

Finding Your Tempo Pace

There are several ways to find it:

Method 1: Race Prediction

Use our Pace Calculator with a recent race time. Your threshold pace is typically:

  • About 25-30 seconds per km slower than 10K pace
  • About 15-20 seconds per km faster than half marathon pace

Method 2: Heart Rate

85-90% of max heart rate.

Method 3: Perceived Effort

6-7 out of 10 effort. "Comfortably hard." You want to slow down but don't need to.

Tempo Run Formats

Classic Tempo (20-40 minutes)

The standard approach:

  • 10-15 min easy warmup
  • 20-40 min at tempo pace
  • 10 min easy cooldown

Best for: General threshold development, half marathon training

Cruise Intervals

Broken into segments with short recovery:

  • 3-4 x 10 minutes at tempo with 2 min jog
  • 5 x 6 minutes at tempo with 90 sec jog

Best for: When starting tempo training, longer threshold work

Progression Tempo

Start slower, finish faster:

  • First third at marathon pace
  • Second third at tempo pace
  • Final third at 10K effort

Best for: Learning to close races strong

Common Tempo Mistakes

1. Going Too Fast

The most common error. If you're racing the tempo, you're missing the point. It should feel controlled.

2. Going Too Long

More isn't always better. 40 minutes of quality tempo beats 60 minutes of sloppy threshold running.

3. Skipping Warmup

You need 10-15 minutes of easy running before hitting tempo pace. Cold muscles don't respond well.

Sample Week with Tempo

This is close to what I did for 24 weeks. Simple, sustainable, effective.

The Mental Game

Tempo runs teach you to be comfortable with discomfort. This translates directly to racing:

  • You learn what "sustainable hard" feels like
  • You practice not panicking when it gets tough
  • You build confidence in your fitness

By race day, I knew exactly what tempo felt like. I trusted my legs because I'd done the work.

Key Takeaways

  1. Tempo = threshold pace = comfortably hard
  2. Use the Pace Calculator to find your tempo pace
  3. Start with 20 minutes and build gradually
  4. Don't race your tempo runs—control is key
  5. One tempo per week is plenty for most runners

Consistent tempo work will make you a faster, more confident racer. Trust the process.