This page explains how Alan Tang (USATT# 81663)'s rating went from 2109 to 2099 at the Fremont Table Tennis Academy League event from 28 Jul 2018. 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.