This page explains how Xing Xiong (USATT# 30401)'s rating went from 1806 to 1801 at the 6th FIT Open TT Championships held on - 25 Mar 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.