Win/Loss ratio required for promotion

[Juslas]

For placement matches one should not start them simultaneously, because you miss the opportunity to get higher ranked opponents (after wins). And if you know that you are about to lose, starting remaining match early will help.

I started about a month ago to play 2v2 random, which is nerv racking game mode.
I am on my 6th match, but since I made the top ranking list today I'll prematurely post my stats so far. Games can be found at osn.

Random
5 placement wins -> masters (directly to 41st at top 155 list)
Teammates: fluffy, clever, gifted, gifted, master
Opponent: fluffy, clever, gifted, new, master
5th opponent was arranged 2v2 174th prior our match and 188th at current ranking list.