This page explains how Neil B. Ackerman (USATT# 3749)'s rating went from 1940 to 1933 at the RPI Open held on - 3 Mar 2002. 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.