This page explains how Jinchang Chen (USATT# 96180)'s rating went from 1884 to 1876 at the San Francisco Bay Area CLC event from 17 Sep 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.