This page explains how Benjamin Zhang (USATT# 82612)'s rating went from 1771 to 1759 at the Westchester 2013 July Open held on - 21 Jul 2013. 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.