This page explains how Mark Johnson (USATT# 26863)'s rating went from 1699 to 1692 at the Ping Pong Dojo event from 21 Jul 2011. 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.