Foundational Zone 2 Run
Workout - Foundational Zone 2 Run
- 10min @ 8'00''/km
- 50min @ 3'45''/km
- 5min @ 8'00''/km
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Intro
Stephen Scullion, an Olympic marathoner, covers an approach called Zone 2 steady running in a video that’s worth your time. We’ve distilled the key takeaways so you can test this method on your runs this week. The full video has additional context you might find useful.
Key Points
- Zone 2 forms the foundation of endurance training — steady, fat-burning runs that create the aerobic capacity required for strong race performances.
- Target heart rate: around 150–155 bpm (translates to roughly 6 min/mi pace at sea level, or slightly quicker when training at altitude) — about 60–70% of your maximum heart rate.
- Frequency: Run at this intensity 3–4 times weekly, with each session lasting 45–60 minutes. Building a steady habit matters far more than sporadic intense efforts.
- Course selection: Pick a safe, looped route with few interruptions — this helps you sustain the target zone without losing your flow.
- Don’t combine challenging terrain or speed work with these steady efforts — preserve your energy for your dedicated hard sessions by keeping the easy work genuinely easy.
Workout Example
A sample Zone 2 workout (following Stephen’s approach):
- Warm-up: 5–10 minutes of easy jogging.
- Main effort: 45–60 minutes of uninterrupted running on a looped park route.
- Maintain your heart rate in the 150–155 bpm range (lower to 145 bpm if conditions are hot or you’re at elevation).
- Pace lands around 6 min/mi (≈ 9:40 min/km) — approximately 30–40 seconds slower than your marathon goal pace.
- Cool-down: 5–10 minutes of easy jogging or walking.
- Optional: add subtle rolling hills for some leg-building stimulus while staying comfortably in the zone.
Closing Note
Test this approach over the coming week — adjust the length and speed to suit your own heart-rate zones using the Pacing app, and you should notice gains in fitness and race performance. Enjoy the run!