This page explains how Selena Chen (USATT# 1183604)'s rating went from 800 to 783 at the Westchester 2024 April Open held on 27 Apr 2024 - 28 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.