This page explains how Jackie Feng (USATT# 70467)'s rating went from 1785 to 1778 at the West Jersey Table Tennis Club League event from 5 Jan 2012. 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.