This page explains how Songchen Xia (USATT# 98325)'s rating went from 1862 to 1847 at the Westchester June 2022 Open held on 25 Jun 2022 - 26 Jun 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.