80/20 Running: Run Stronger and Race Faster by Training Slower

by Matt Fitzgerald

training should emphasize endurance building. The process of getting in shape for races should be a lopsided effort to increase stamina to the point where a runner could run more or less forever.

doing 80 percent of your running at low intensity won’t take you very far if you never run at high intensity.

Fast runs may hurt more, but long runs hurt longer. The slow-burn type of suffering that runners experience in longer, less intense workouts is more specific to racing.

Motivation