Making a Ranking System

The game I'm making is a 2-player match game, and I'd like to have a rating system for it, similar to chess. After investigating both API's, though, all I've found was

player.SubmitRankingDelta("win", player1 == hasTurn ? 1 : -1);
From the TicTacToe serverside solution, and then from the Nonoba API,
api.content.SubmitScore(stage,key,score,callback)

Neither of which are very enlightning (to me, at least) of how I can store a rating value for each user, give a user a base rating the first time the user plays, and change the rating value for both users after every game instance... Is there any simple way to do this, like in the Kongregate API? (When you can just put _root.kongregateStats.submit("Rating", newRating) wherever you need to)?

Thanks!

After checking around other threads, I guess what I need is a ranking list - however, there is nothing about ranking lists in the API, just SubmitScore, no code that can submit deltas.

if there was a way to pull the score down from the server you could pull it down, make the changes and reupload the new one yourself. Just an idea... not even sure if pulling the score down is possible.

IvyGames - the info you are looking for is here

Very basically you just define the score as a ranking score when creating it on the site.

Thanks!