This page explains how MICHAEL REFF (USATT# 24318)'s rating went from 1671 to 1691 at the Westchester 2014 July Open held on - 27 Jul 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.