You just raced a half marathon and you want a marathon time, not just a finish. This plan does it in 15 weeks. Week 1 is a reset. You raced recently and pushing straight into a build is how people arrive at the marathon start line already tired. From Week 2 the work begins, and it does not let up until the taper. You run 6 days a week with two quality sessions. Tuesday carries threshold, marathon effort and steady interval work. Thursday grows from easy running into medium long runs and ...