Slightly offtopic - I saw this guy try and run Kipchogi's 2 hour marathon pace on a treadmill. Madness: https://www.youtube.com/watch?v=kX5riy60oXk https://www.

Slightly offtopic - I saw this guy try and run Kipchogi's 2 hour marathon pace on a treadmill. Madness: https://www.youtube.com/watch?v=kX5riy60oXk https://www.youtube.com/watch?v=kX5riy60oXk How is that not sprinting? :-)