This page explains how Mark E. Berg (USATT# 6250)'s rating went from 1974 to 1919 at the Brooklyn TTC August Open held on - 19 Aug 2007. 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.