This page explains how Jonathan Hirata (USATT# 70449)'s rating went from 1941 to 1945 at the Westchester 2017 March Open held on 25 Mar 2017 - 26 Mar 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.