This page explains how Xiongxiong Zhuang (USATT# 1171978)'s rating went from 1896 to 1877 at the SpinBlock Monday Night League event from 21 Feb 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.