This page explains how Kelly Liang (USATT# 212154)'s rating went from 2003 to 1999 at the MDTTC Tuesday/Friday League event from 13 Jan 2017. 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.