DOUBLE THE DISTANCE — 16 weeks · 4 runs/week · 30 pages

The gap between finishing a 5K and finishing a half marathon is where most runners get hurt. Not from lack of effort — from adding distance faster than the tissue adapts. This plan doubles your distance on a schedule built to keep you running the whole way through.

WHAT’S INSIDE
• A 16-week periodised build: long runs, tempo work and intervals, each with a stated purpose
• Weekly mileage progression written to keep overuse injury off the table
• Fuelling and hydration for efforts over an hour, in amounts, not vibes
• A taper and a race-day execution plan you can follow the morning of

HOW IT’S BUILT
Every loading decision is labelled: named study, established practice, or our own tailoring. You’ll know which sessions rest on strong evidence and which are coaching convention.

WHO IT’S FOR
A runner who can already cover 10K comfortably and wants 21.1 km.

WHO IT’S NOT FOR
Anyone not yet running 10K — start with Your First 5K and come back. The distance is earned across sixteen weeks. There is no version of this that isn’t.

Pillars: Synthesis · Evidence · Specificity · Earned

GUARANTEE: Try this plan risk-free with our 7-day trial period guarantee. If you run the sessions and it isn’t right for your goals, reach out in support for a complete refund.