This page explains how Zhen Jia (USATT# 83670)'s rating went from 2141 to 2090 at the Central Carolinas Super League event from 21 Dec 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.