This is quite a common question a lot of players are not familiar with. In this article we will explain in details how exactly does the matchmaking in Overwatch works. Lets start from the beginning. In order to participate in ranked games you need to get to level 25, which takes some time playing. While leveling to 25, based on your performance during games, your hidden MMR changes with every game. The better you perform, the higher MMR you get. This is quite important preparation step in order to participate in ranked - Competitive play.