This page explains how Ping Cang Chen (USATT# 1176772)'s rating went from 2404 to 2389 at the Westchester 2024 January Open held on 27 Jan 2024 - 28 Jan 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.