This page explains how John Lun Shew (USATT# 9961)'s rating went from 1240 to 1140 at the Arlington Table Tennis Club event from 1 Jul 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.