the placement system goes off win/loss based on the quality of people you played against and won or loss to.
don't play the random team games for a couple of weeks would be my advice..
but now to move up the ranking system you're going to have to peice together a good chain of consecutive wins.. the ranking system will start putting you against gold players once you win a few in a row if you continue to win it will bump you up to gold etc etc.
