This page explains how Lennox Douglas (USATT# 3212)'s rating went from 2091 to 2090 at the West Jersey Table Tennis Club League event from 4 Mar 2010. 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.