This page explains how Mark J. Ratner (USATT# 58147)'s rating went from 1705 to 1711 at the NTTC September Open held on - 1 Oct 1995. 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.