I recently started playing this game again for the seasonal rank. I won my first game and apparently the pudge on my team had 5.7k before calibration. After post-game, my team asked him his new mmr and he got boosted to 6.4k. According to him, he won 7 games and lost 3. Now what the hell does this mean? Even a sub 5k player from the previous season can now get up to 6k if you happen to win more games than you lose during the calibration phase. Conversely, this can mean someone who goes like 2 wins and 8 losses may even be placed lower than previously before. Fret not, dota 2 players - your epeen in this game does not measure your success in real life (probably).