This page explains how Lisa Schrader (USATT# 69642)'s rating went from 842 to 841 at the Power Pong October Open held on - 22 Oct 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.