This page explains how Tong Lai Lai Yu (USATT# 21768)'s rating went from 1641 to 1636 at the Power Pong Open held on - 21 Apr 2007. 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.