This page explains how Benjamin Zhang (USATT# 82612)'s rating went from 1685 to 1682 at the Westchester 2012 July Open held on - 22 Jul 2012. 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.