This page explains how Jason Mei (USATT# 270753)'s rating went from 1261 to 1559 at the Westchester November 2022 Open held on 19 Nov 2022 - 20 Nov 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.