How do QL counts skillrating?

[aush]

I started with skillrating 160. After first match (1st place from 12, 3 quitters) it was 164. Later three matches:
1st place from 7, 2 quitters
4th place from 10, 1 quitter
2nd place from 9, 3 quitters

And now skillrating is 162.

I've read somewhere that top 3 from generalized scoreboard goes up and bottom 3 goes down, but looks like it's wrong from what I see. It means no much for this particular case, but I'm just curious about it.

[Lam]

First off, there's minimum time you need to be on server to even be on the "generalized scoreboard". I don't think it was disclosed anywhere, it's probably 1 or 2 minutes.

Secondly, that "scoreboard" is sorted by score per time.

Thirdly, quitters are still on that "scoreboard" provided they passed the minimum time of playing.

So if you have 5 points in 5 minutes (1 per minute) and someone else has 4 in 3 minutes (1,33 per minute), he's top of the scoreboard. If everyone else played below the minimum, that can mean you're treated as the worst on the server :)

Can't really say anything about that without knowledge of that hidden constant.