This page explains how Herbert Kline Wilson (USATT# 11156)'s rating went from 1643 to 1622 at the NTTC Feb Open held on - 18 Feb 1996. 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.