This page explains how Zongqi Henry Zhong (USATT# 84897)'s rating went from 2453 to 2454 at the NJTTC Friday League event from 7 Dec 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.