This page explains how Richard A. Dewitt (USATT# 47261)'s rating went from 2190 to 2168 at the AACCT Friday Night League event from 16 Jun 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.