...It is... strange.

The distance between them isn't increasing as much as I thought it would.

I mean, there is fatigue of course, but they both still pedal while standing, just how in the?..(A)

...It's obvious.

...It's not like you are quitting the fight if you are switching to the seated position.

While it is true, that standing pedaling provides tremendous burst power, but fatigue also builds up much faster.

That is exactly why everyone is letting their strength out in alternate shifts, abiding by a certain rhythm.

This sort of fatigue management is a key for a long spurt.