This page explains how Mohamed G G Kamara (USATT# 34020)'s rating went from 2107 to 2089 at the MDTTC Tuesday/Friday League event from 1 Sep 2017. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.