This page explains how Sophia Zhuo-yao Chen (USATT# 221729)'s rating went from 1945 to 1943 at the 888 League event from 21 Apr 2024. 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.