Be a Better Runner Marathon – Sally Edwards

About the plan

A 12-week marathon plan based on Sally Edwards' methodology, aimed at experienced runners who want intensive preparation with a strong emphasis on threshold work and progressive long runs. This is the most demanding program in the Be a Better Runner series. From week 4, frequency rises to 5 sessions per week, with long runs that progress from 60 minutes up to 2:40 at threshold pace. The plan is aggressive in intensity: even in the base phase there are combined sessions (an intensity ladder + sustained threshold), and the peak phase includes long runs of 2:30+ at threshold pace — something unusual that demands significant aerobic maturity.