[booker]

Running a mile vs a 5K are two very different things. One could argue that given the large endurance base (which he continually hammers on in his articles and videos) would provide a good foundation for a mile "sprint" of the sub-5 minute nature. I recall reading years ago about one of the body builders at the time that outsprinted one of the Olympic sprinters at I believe was an 800m distance (the distance is a hazy recollection). Theoretically, depending upon his fast and slow twitch ratio, he could achieve both, but I too would like to see the proof. Not to take anything away from him, because I would put good money on no other endurance runner having those kind of numbers, regardless of the amount of time between the one rep max and the ultra race.