Long Runs: 3 hour rule and slower runners

I have talked about long runs a lot, especially for marathon training. If you are familiar with the book, we talk about 25-30% of weekly mileage and less than 3 hours. For most people, 16 miles fits pretty well. However, there are always outliers and sometimes runners might not be able to complete 16 miles in the 3 hour window. We explore this concern today.

http://www.lukehumphreyrunning.com