This page explains how Dewei Sun (USATT# 82242)'s rating went from 1539 to 1482 at the Ping Pong Dojo event from 21 Jun 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.