This page explains how Rick Massoth (USATT# 31289)'s rating went from 1843 to 1838 at the Albuquerque Team Tournament held on - 25 Apr 1998. 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.