The Hansons Advanced plan is brutally effective if you commit to its philosophy. The 16-mile max long run will make you nervous, but runners who follow the plan often report feeling too strong in the final 10K—a rare and valuable feeling. The cumulative fatigue works, but it requires discipline on easy days and faith in the process. If you’re an experienced marathoner looking to break a plateau and run a smart, even-paced race, this is one of the best plans available.