Quote (xuberx @ Apr 29 2013 03:25pm)
how many games do you need to fall from Silver III to Silver IV?
how can you rise your MMR and in what is it based?
Games needed to fall depends on your MMR. Sometimes it'll take just 1 loss to be demoted while it can take others 3-4 losses to be demoted.
There are 2 main factors it's based off of
1) Wins. Quite obvious that winning will raise your MMR
2) How difficult your match up is. If your opponents have an overall higher average MMR, you will raise your MMR little faster. Likewise, if your opponents have a lower average MMR, you will raise your MMR little slower
But since you can't control that, the only real factor here is winning. That will always raise your MMR no matter what.