I am making a website for me and some friends for a high school fantasy (american) football league.

Here is what I would need-
High School American Football
-capable of me inputting players, and scores.
-allowing users to be able to adjust their teams.
-A custom scoring system

Thats about it.

Does anyone know of anything close to this or any idea of how it could be accomplished?

That would be a basic PHP script. << removed >>

There is a site called Cent Sports which is kind of like that, but not high school football.