Got stomped in 8 of my 10 calibration solo matches. 2900mmr... Dunno what went wrong: When we play as team we achieve something between 3.5k and 4k mmr
Yeah, Valve added a ranked game mode a during the holidays. You can now play the standard game modes (all pick, captains draft, ...) as ranked game. After 10 games you receive a MMR value (differs for team and solo games). But afaik there is no ladder yet.