I typed in frisbee physics and the first thing to pop up was this, it contains a few advanced theories but for some this could be helpful
It’s a good resource, but I wouldn’t read or rely on it too much for the competition.
Just going to cross-post this here: http://www.chiefdelphi.com/forums/showthread.php?p=1208845#post1208845
It’s not really terribly useful. You’ll probably be better off just using a lookup table.