This page explains how Peter Chung (USATT# 31990)'s rating went from 1549 to 1509 at the Ping Pong Dojo event from 12 Jan 2012. 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.