This page explains how Jean-Hugo Drouillet Conde (USATT# 31854)'s rating went from 1688 to 1677 at the West Jersey Table Tennis Club League event from 19 May 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.