This page explains how Hanson Qin (USATT# 81606)'s rating went from 1538 to 1524 at the Ping Pong Dojo event from 25 Oct 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.