This page explains how Eva Liung (USATT# 223243)'s rating went from 1109 to 1106 at the Boston TTC Div.B event from 7 Oct 2019. 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.