This page explains how Robert Spitzer (USATT# 27003)'s rating went from 1580 to 1690 at the Westchester 2014 August Open held on - 24 Aug 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.