The Modular HALF Marathon System by Dr Will

Description

If you’ve been watching my YouTube videos and thinking, “I wish I had a plan like that” — this is it.

The Modular HALF Marathon System is everything I talk about on my channel, brought together into one fully customizable framework. It’s built around the same data-driven principles I use with my own training and with the runners I coach — threshold-based pacing, modular long runs, progressive loading, and the flexibility to adjust when life (inevitably) gets in the way.

This isn’t a rigid PDF that falls apart the moment you miss a session. It’s a system — structured, smart, and adaptable — that helps you train consistently and improve over time, no matter where you’re starting from.

I built this for runners like you: people who want to train seriously, but who also have jobs, families, and limited time. You’ll have a clear plan, the freedom to adjust it, and the confidence that every run has a purpose.

What It Is

The Modular Marathon System is made up of:

• ✅ 6 x 4-week training blocks you can drag-and-drop in your Intervals.icu calendar

  • Base Phase 1

  • Base Phase 2

  • Base Phase 3

  • Build Phase

  • Prep Phase

  • Race Phase

• 🔁 Reusable and stackable — mix and match blocks to fit your timeline and fitness

• 🔄 Fully editable — adjust training days, session types, or intensities anytime

• 📊 Built for analysis — track progress with Intervals.icu’s data tools

• 🔗 Compatible with my other modular plans (5K, 10K, Half Marathon)

• 🧠 Science-backed structure — using threshold-based pacing, modular long runs, and progressive loading