This page explains how Shing-Li Sung (USATT# 30198)'s rating went from 2161 to 2136 at the Bay Area Table Tennis Federation event from 30 Jan 2010. 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.