This page explains how John Salas (USATT# 43722)'s rating went from 1820 to 1839 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.