This page explains how Robert G. Marcus (USATT# 8051)'s rating went from 1965 to 1942 at the Central Atlanta Table Tennis Club League event from 11 Feb 2006. 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.