This page explains how Jonathan Hirata (USATT# 70449)'s rating went from 1917 to 1938 at the Westchester 2014 October Open held on - 26 Oct 2014. 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.