This page explains how Haihong Zhu (USATT# 274612)'s rating went from 1648 to 1626 at the NJTTC Thursday Adv League event from 30 Jun 2022. 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.