Matchmaking Rating (also known as MMR) is a number calculated for each player to match them with players of similar skill in PvP. The intent behind MMR is to match players by skill. This is accomplished by comparing an assigned number (MMR) that adjusts based on the relative MMR of the opponents you win or lose to.

How can I calculate my MMR?

How is MMR calculated? Players initially have their MMR calculated based on the wins, losses, and stats the player compiles during their placement games. From there, MMR moves up and down as the player moves through ranked matches. A win will see the player gain MMR, while a loss will see the player lose MMR.

How chess rating is calculated?

A chess rating is based on your opponents ratings and your results against those opponents. It is usually calculated after an event (a tournament or a match) has completed and is based on all the games played against rated opponents in that event. Well summarize your results as +1400 -1650 +1575 =1625 -1700.