This page explains how Ricardo Abril (USATT# 22633)'s rating went from 1834 to 1820 at the Newgy Table Tennis League event from 21 Sep 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.