Plan recovery after a marathon.
The traditional guideline is one easy day per mile raced — twenty-six days — and it holds up reasonably well as a starting point. Four factors move it. Time on feet matters more than distance, so a five-hour finish demands more recovery than a three-hour one over the identical course. Training volume works the other way: a runner who habitually covers eighty kilometres a week absorbs the race far better than one who peaked at thirty. Prior marathons shorten the window modestly, and age extends it by roughly half a percent per year past thirty-five.
Post-marathon recovery window
Days = 26 x (finish time / 4 h) x experience factor x age factor / volume factor, bounded to 10-60 days
These figures are estimates based on population-average formulas and are intended for training and recreational planning only. They are not medical advice. Consult a qualified health professional before starting or changing an exercise, recovery or cold-exposure programme, particularly if you have a cardiovascular condition, are pregnant, or take medication that affects heart rate or thermoregulation.
Because muscle damage markers stay elevated for several days and immune function is measurably suppressed. Walking and easy cross-training maintain blood flow without loading the damaged tissue, and the evidence for that approach is much stronger than for early jogging.
Physically you can, and many runners do — but performance is compromised and injury risk is elevated for weeks after a marathon regardless of how you feel. The racing figure here assumes you want to run well rather than merely finish.
Because the race represents a smaller relative overload. Twenty-six miles is a routine week's volume for a high-mileage runner and close to a month's for a low-mileage one, and recovery scales with that ratio rather than the absolute distance.