What does it take to enter the masters league?

[Tidehawk]

What other factors are included in this ranking?
Prehaps...
Strength of opponent - does this mean their win/lose ratio or their rank?
Game score - if you win 5-0 to say 2-0 does that increase your rank?
Win style - Is it better for your rank to take out the base or to eliminate and capture barracks?
Idle time - Are you penalized for playing the meta game? i.e. stretching out games you are in danger of losing
Race - Does it help you rank if you win with various races and not just one?

Also, I see many people talking that a certain number of wins in a row earns a promotion. That indicates to me that this hidden rank is only looking or prioritizing the last number of games. How many games is that? If so we might be able to play the meta game to our advantage if we know how many.

Perhaps I will go on some star craft 2 forums for these answers because they have a very highly evolved league ranking system and these guyz seem to be emulating it.

Werd,

Tide