This page explains how Cory Johnson (USATT# 29085)'s rating went from 2018 to 2004 at the Westchester August 2019 Open held on 24 Aug 2019 - 25 Aug 2019. 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.