During the interval

I have been doing interval training once a week lately, in which I alternate a minute "sprinting" on the treadmill with walking while I recover.

Some idle mental arithmetic during the walk has revealed to me that my sprint is slower than the speed at which a quality marathon runner covers the whole twenty six miles.

Prodnose: You know, Stallion? It's too bad we gotta get old, huh?
Myself:: Ah, just keep punchin', Apollo... you want to ring the bell?
Prodnose: Alright... Ding Ding.