Match making not working properlys?

[MarkH]

Hi!
Today I finished the second round of my placement matches and got ranked master leaque. Fine. After a couple of hours I started five new ranked matches. To my surprise four out of the five matches are against unranked players with 1-5 won ranked games. The remaining fifth game is against someone who is ranked master leaque but has 0 leaque wins.

This all sounds a little odd. Anyone else having similar issues?