This page explains how Zhongqi Zhang (USATT# 217528)'s rating went from 1804 to 1805 at the Guanghua League event from 28 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.