Depends on what level of college, and which college. Even some Div. I programs, those with weak tennis programs, will field some mediocre players. It's just too large a group to blanket rate.
I still don't understand the mentality of a 5.0 playing in a 4.0 league. There's no MONEY involved, and how FUN or CHALLENGING is it playing people ranked two-three levels lower? Don't most non-pros play tennis for the fun and challenge? I must be naive or idealistic-that's what I thought. Beating up on lower-rated players isn't either. I think sandbaggers, when caught, should be expelled from the league, along with the team captain. Maybe a 2-season ban would be a deterrent to this kind of low life cheating.