This page explains how Greg Bartz (USATT# 110466)'s rating went from 2278 to 2280 at the Westchester 2017 held on 23 Sep 2017 - 23 Sep 2017. 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.