80/20 Running into Practice
I have been putting the 80/20 running rule into practice. The principal is simple. Instead of running to your max you run at a comfortable pace for most of your running instead. Instead of pushing yourself to be fast, you push yourself to have endurance. You train at a pace that is 80 percent or less of your maximum, to perform better when you race.
Train for Endurance, Not Speed
The concept is rational. You could train to your max but by doing so you tire yourself emotionally, physically and mentally. Instead of improving you hit a wall. The 80 percent rule builds on the idea that by training consistently at a lower intensity 80 percent of the time you build stamina and endurance.