I used to compute "power ratings" for college football. Would this work in PHP? I have a formula that calculates a new ratings, based on the team's rating before the game, the opponent's before the game, and the outcome.
How hard would it be to read from a tab delimited .txt file:
away awayscore home homescore
Then calculate the rating, output the new rating sort and format into something like http://www.mratings.com/rate/cf-m.htm
With the team links and everything.