Being an endurance athlete for over half of my life, I can safely say I’ve trained the majority of those years the wrong way. I thought, ”I’m an endurance runner so I need solid endurance.”  What I had no knowledge of was the need for stamina … and even more importantly … the need for power. Don’t confuse stamina with endurance.   Endurance is the ability to go as long as possible at whatever pace necessary to achieve said longevity. Stamina, on the other hand, is the percentage of threshold power you can maintain during your expected race time.   For example, if your goal for a half ironman is to complete the bike leg in two and half hours, stamina would be the…