How does the placement works?

Last season I finished with 1726 csr on slayer and 3 of my teammates in the champion position. Starting the new summer 2018 season during the qualify matches we won all the games and I finished platinum 6. How does it work exactly because I’m I’m comfused.?.? My teammates finished onyx and one champion

Check the matchmaking forum. Dr. Menke explains it all his posts. LINK HERE.

I do not understand the logic of rankings either. For example, I have an acquaintance who is really not very good. A few days ago he created a new account, today level 8, and he just made his HCS rankings with a K / D of 0.5 and 20 percent of wins, and he is ranked Platinum 2 limit platinum 3 On this main account he has never passed gold 3. Tonight also another friend was champion 101 in the team arena last week, and today in the rankings with a K / D of 1,133 and 90 percent of victory there it is classified diamond 4 limit 5.

Feel free to continue discussion and ask any questions in the thread linked above