19.2mph/avg over 5mi, 18.7 over 10. My average is improving. In the last couple miles, I could feel my energy suddenly drop to the point where I could barely maintain 16-17, but I powered through it, forcing myself up into mid-18′s.
It was gratifying to notice that my lung capacity and muscle stamina have significantly improved. My lungs still hurt when I breathe deep, but no longer restrict airflow. Good deal. My legs burn after working hard as before, but they no longer crash as quickly. I find I can maintain high output for long distances, perhaps miles, where before I could hardly sprint for a few hundred feet without collapsing.
Yay.