This page explains how Robert G. Marcus (USATT# 8051)'s rating went from 1969 to 1948 at the Central Atlanta Table Tennis Club League event from 18 Sep 2005. 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.