This page explains how Eva Liung (USATT# 223243)'s rating went from 987 to 980 at the Boston TTC Div.B event from 12 Nov 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.