Skip to main content

Types of Running Workouts

Every training plan includes different types of runs, each serving a specific purpose. Understanding what each workout does helps you train smarter.

The Five Main Workout Types

1. Easy Runs (Recovery Runs)

Purpose: Build aerobic base, promote recovery, accumulate volume safely

Characteristics:

  • Conversational pace (you can speak in full sentences)
  • 60-75% of max heart rate
  • Should feel comfortable, even "too easy"
  • Most common workout type

Duration: 20-90 minutes depending on fitness and training phase

Why It Matters:

  • Builds mitochondria and capillary density
  • Strengthens tendons and ligaments
  • Allows you to accumulate mileage without excessive stress
  • Promotes recovery between hard sessions

Common Mistake: Running easy runs too fast, which turns them into "junk miles" that create fatigue without the benefits of true hard training.

Rule of Thumb: 70-80% of your weekly mileage should be easy runs.

2. Long Runs

Purpose: Build endurance, mental toughness, and race-specific adaptations

Characteristics:

  • Easy to moderate pace (slightly slower than easy run pace is fine)
  • Duration-based, not pace-based
  • Typically 90-180 minutes for marathoners, 60-90 minutes for shorter distances
  • Usually done once per week

Duration: 20-30% of your weekly mileage in a single run

Physiological Benefits:

  • Teaches body to burn fat efficiently
  • Builds muscular endurance
  • Strengthens running-specific muscles and connective tissue
  • Improves mental resilience

Variations:

  • Standard Long Run: Steady easy pace throughout
  • Progressive Long Run: Start easy, finish at marathon pace
  • Long Run with Fast Finish: Last 2-4 miles at tempo or marathon pace

Key Point: The long run builds endurance through time on feet, not fast running.

3. Tempo Runs (Threshold Runs)

Purpose: Improve lactate threshold - the pace you can sustain for ~60 minutes

Lactate threshold training is one of the most effective methods for improving endurance performance, as it raises the exercise intensity at which lactate begins to accumulate in the blood.[1]

Characteristics:

  • "Comfortably hard" pace
  • About 80-90% of max heart rate
  • Can only speak in short phrases
  • Feels controlled but challenging

Duration: 20-40 minutes at tempo pace (or broken into segments)

Formats:

  • Classic Tempo: 20-40 minutes continuous at threshold pace
  • Cruise Intervals: Shorter segments (e.g., 3x2 miles) with 1-2 min recovery
  • Tempo Long Run: Sections of tempo pace embedded in a long run

Target Pace:

  • Roughly your current 10K to half marathon race pace
  • About 15-20 seconds per mile slower than 5K pace
  • About 25-30 seconds per mile faster than marathon pace

Why It's Important:

  • Improves your ability to clear lactate
  • Raises the pace you can sustain aerobically
  • Excellent bang-for-your-buck workout
  • Highly specific to 10K-half marathon racing

Jack Daniels calls this: T pace (Threshold pace) McMillan calls this: Tempo pace

4. Interval Training (VO2 Max Intervals)

Purpose: Improve maximal oxygen uptake and running economy

VO₂max intervals are designed to stress the cardiovascular system maximally, leading to improvements in maximal oxygen uptake - a key predictor of endurance performance.[2] These workouts typically elicit VO₂max within 2-3 minutes and maintain it for the duration of the interval.

Characteristics:

  • Hard effort (5K pace or slightly faster)
  • 3-5 minutes per interval
  • Equal or slightly shorter recovery periods
  • 90-100% max heart rate during work intervals

Typical Workouts:

  • 5-6 x 1000m with 400m recovery
  • 4-5 x 1200m with 2-3 min recovery
  • 6 x 800m with 400m recovery

Target Pace:

  • Roughly your current 5K race pace or slightly faster
  • Should feel "hard but sustainable" for the interval duration
  • If you can't complete the workout, you're going too fast

Physiological Benefits:

  • Increases VO2 max (maximum oxygen processing)
  • Improves running economy
  • Develops speed endurance
  • Enhances neuromuscular coordination

Recovery: Should feel mostly recovered before starting next interval

Common Mistake: Running these too fast, which turns them into speed work and defeats the purpose.

Jack Daniels calls this: I pace (Interval pace) McMillan calls this: VO2 max pace

5. Repetitions (Speed Work)

Purpose: Improve running economy, neuromuscular power, and pure speed

Characteristics:

  • Very hard effort (faster than 5K pace)
  • Short duration (30 seconds to 2 minutes)
  • Full or near-full recovery between reps
  • Focus on form and efficiency

Typical Workouts:

  • 8-12 x 400m with 400m jog recovery
  • 6-8 x 200m with full recovery
  • Hill repeats: 8-10 x 30-60 seconds uphill

Target Pace:

  • Mile to 3K race pace or faster
  • Should feel fast but controlled
  • Complete recovery between reps

Physiological Benefits:

  • Improves running economy (efficiency)
  • Develops fast-twitch muscle fibers
  • Enhances stride power and turnover
  • Builds speed reserve for racing

When to Use:

  • Less important for marathoners, more important for 5K/10K runners
  • Best used in race-specific training phases
  • Often done on a track for precision

Jack Daniels calls this: R pace (Repetition pace)

How to Combine These Workouts

Weekly Structure Example (Intermediate Runner)

Monday: Easy run (30-45 min) Tuesday: Tempo run or intervals Wednesday: Easy run (30-45 min) Thursday: Easy run (30-45 min) or rest Friday: Easy run (30-45 min) Saturday: Long run (90-120 min) Sunday: Rest or easy run (30 min)

The Hard/Easy Principle

  • Never do hard workouts on consecutive days
  • Follow hard days with easy days or rest
  • Quality over quantity on hard days

Progression Through Training Phases

Base Building (off-season):

  • Mostly easy runs and long runs
  • Focus on volume, not intensity

General Preparation:

  • Add tempo runs
  • Introduce some intervals
  • Maintain base volume

Race-Specific:

  • Add race-pace work
  • Simulate race conditions
  • Maintain intensity, reduce volume slightly

Taper:

  • Reduce volume significantly
  • Maintain some intensity to stay sharp
  • Prioritize rest

Key Takeaways

  1. Each workout type has a specific purpose - don't mix them up or skip types
  2. Easy runs should be truly easy - this is where most runners go wrong
  3. Hard workouts should be hard enough - but not so hard you can't recover
  4. Variety is essential - your body needs different stimuli to improve all systems
  5. Most of your running should be easy - 70-80% easy, 20-30% hard

References

[1] Billat, V. L. (2001). "Interval training for performance: a scientific and empirical practice." Sports Medicine, 31(1), 13-31. DOI: 10.2165/00007256-200131010-00002

[2] Midgley, A. W., et al. (2006). "Training to enhance the physiological determinants of long-distance running performance." Sports Medicine, 36(2), 117-132. DOI: 10.2165/00007256-200636020-00002

[3] Daniels, J., & Gilbert, J. (1979). "Oxygen Power: Performance Tables for Distance Runners." Tafnews Press.

Next: The Aerobic System