This page explains how Richard A. Dewitt (USATT# 47261)'s rating went from 2177 to 2164 at the LYTTC Friday Pro League event from 29 Jun 2014. 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.