This page explains how John Mc Dermott (USATT# 93518)'s rating went from 1917 to 1930 at the Westchester 2016 July Open held on 30 Jul 2016 - 31 Jul 2016. 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.