This page was last edited on 22 Octoberat Match quality is presumably determined by a combination of the player's behavior score and their account flags value. MMR for ranked matches require approximately 10 games to calibrate. In general, players with similar MMRs will be matched with each other. Ranked Matchmaking allows players to earn seasonal ranking medals based on their MMR. Sign In. Dota 2 content and materials are trademarks and copyrights of Valve or its licensors.
Dota 2 Ranking System (MMR, Ranks, & Leagues)
The account flags supposedly determine in which matchmaking pool a player should be, independently of their mmr and behavior score.
Dota 2 Matchmaking Stats
In general, parties receive bonus MMR when searching for matches. Players with a high behavior score get matched with other players with a high score and vice versa. However, this information can only potentially be revealed through a request to the Steam support. From Dota 2 Wiki.