This page explains how Mark E. Berg (USATT# 6250)'s rating went from 1810 to 1793 at the Westchester 2013 May Open held on - 26 May 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.