This page explains how Jackie Feng (USATT# 70467)'s rating went from 1717 to 1721 at the West Jersey Table Tennis Club League event from 20 Aug 2009. 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.