This page explains how Neil Grey (USATT# 6269)'s rating went from 882 to 838 at the Golden Western Open held on 2 Mar 2019 - 3 Mar 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.