This page explains how David S. Chu (USATT# 4872)'s rating went from 1975 to 1974 at the Bay Area Table Tennis Federation event from 6 Apr 2008. 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.