This page explains how Zhongqi Zhang (USATT# 217528)'s rating went from 1753 to 1804 at the Guanghua League event from 9 Mar 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.