There is no single “best” marathon training plan. The best plan is the one that fits your schedule, matches your fitness level, and aligns with your racing goals. That said, there are some principles that all good plans share.

A good marathon training plan should include: a base-building phase to develop aerobic fitness, speed work to improve running economy and lactate threshold, long runs to build endurance, and a taper period to arrive at the starting line fresh.

The duration of a marathon training plan is typically 16-20 weeks, though some runners benefit from a longer or shorter timeline depending on their experience and goals.

When choosing a training plan, consider your current mileage, your previous marathon experience, and your goal for the upcoming marathon. A plan that works for an experienced marathoner aiming for a sub-3 marathon might not be appropriate for a first-time marathoner aiming to just finish.