You seriously think people will keep on playing against you after you crushed them 5 times in a row? Especially if you want to make it to 500 within 2 months. I seriously doubt you will make it to 500 in that short period of time. You can bet on that.

If people start to care about their ranks and ratings the activity goes down on a limited group of players. People lose the motivation to keep on playing in the ladder and eventually the drop out.

A 3rd party ladder system is the worst tournament structure for a tiny game as jazz.