This page explains how Chengyu Wu (USATT# 271614)'s rating went from 1200 to 1200 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.