Half Marathon Tempo Intervals

Half Marathon Tempo Intervals

Workout - Half Marathon Tempo Intervals

  • 15min @ 6'00''/km
  • 4 lots of:
    • 5min @ 5'45''/km
    • 2min 30s @ 7'00''/km
  • 10min @ 6'30''/km
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Here’s what makes the Half Marathon PB Training Plan from This Messy Happy so effective, and how to put it to work. Getting a new personal best in the half marathon means building a solid, well-designed training structure, whether your goal is the half marathon itself or mastering the 10K. The full video has all the details; keep reading for our summary and a detailed look at key workouts.

Key Principles of the Plan

This program targets experienced half-marathoners who want to add speed and variety to their training. Here’s what it looks like at a high level:

  • Smart Structure: The core of each week is three main runs: an easy base run on Tuesday, a tempo or interval session on Friday, and a long run that progresses over time on Sunday. Strength work and conditioning fill Monday and Thursday.
  • Periodized Blocks: Two consecutive 4-week blocks (Base and Speed) form the main training phase, with a lighter recovery week in between where volume drops significantly. The final two weeks cut volume roughly in half to bring you to race day fresh.
  • Purposeful Pacing: The long run grows to 18 km before you begin reducing volume. The approach is built on polarization: make your easy runs actually easy, and make your hard efforts count. Friday’s speed work is the linchpin—if you want to understand the science behind interval work, we have a detailed breakdown you can explore.
  • Essential Habits: Don’t skip strength sessions, stretch every time you finish a run, honor your recovery days, and remember to find joy in the work.

Example Workout Schedule

**Weeks 1–3 (Base Block)**
*   **Tuesday:** Easy base run (30–45 minutes at a pace where you can hold a conversation).
*   **Friday:** Tempo intervals. Begin with 15 minutes of warm-up, then perform 5-minute efforts at half-marathon race pace (upper zone 3), with 2.5 minutes of easy running between them. Do 3–4 of these efforts, then 10 minutes to cool down.
*   **Sunday:** Progressive long run. Start at 8 km and build by 1–2 km each week, targeting 12–14 km by the block's end.
*   **Monday/Thursday:** Light strength & core work (foam rolling, yoga, Pilates, or body-weight exercises).

**Week 4 (Recovery

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## References

- **[Half Marathon PB Training Plan - YouTube](https://www.youtube.com/watch?v=SyILjLlZK1o)** (YouTube Video)

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