This page explains how Zhen Jia (USATT# 83670)'s rating went from 2224 to 2177 at the 20th Annual North American Team Championship Powered By JOOLA held on 24 Nov 2017 - 26 Nov 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.