Did anyone find it amazing a grown man in his 50's was running track like a pro in season 1 of the cosby show cliff did a good job to run as fast as he did and he almost won ???

https://www.youtube.com/watch?v=n3eJkf4erbI
https://www.youtube.com/watch?v=n3eJkf4erbI
https://www.youtube.com/watch?v=n3eJkf4erbI
https://www.youtube.com/watch?v=n3eJkf4erbI

A lot of people older than Cliff run around here. I don't know how they do it. I'm Cliff's age and it tires me out. lol