You may notice that your CSR sometimes changes, even if you haven’t played in a few weeks.
This can happen when updates are made to player profiles—either your own or those of players you’ve competed against. As part of database cleanup, we sometimes merge player profiles, and our system then recalculates past results using the updated information.
As a result, if your profile changes or the CSR of an opponent you previously played against is adjusted, it can also impact your own CSR.
This process ensures that all ratings remain accurate and up to date.