This page explains how Jiaxin Yang (USATT# 223704)'s rating went from 896 to 990 at the Westchester January 2023 Open held on 28 Jan 2023 - 29 Jan 2023. 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.