This page explains how Hailong Shen (USATT# 75153)'s rating went from 2389 to 2386 at the Ping Pong Dojo event from 17 May 2008. 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.