This page explains how Frederick K. Kelsay (USATT# 23458)'s rating went from 1104 to 1088 at the Power Pong-Butterfly Open held on - 10 Feb 2002. 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.