This page explains how Dongyong Zhou (USATT# 87743)'s rating went from 1911 to 1908 at the San Francisco Bay Area CLC event from 1 Oct 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.