This page explains how Jackie Feng (USATT# 70467)'s rating went from 1223 to 1222 at the West Jersey Table Tennis Club League event from 15 Dec 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.