This page explains how Ben Sheng (USATT# 65000)'s rating went from 1900 to 1889 at the US Open TT Championship held on - 4 Jul 2009. 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.