This page explains how Rick Massoth (USATT# 31289)'s rating went from 1849 to 1883 at the New Mexico Games (Closed) held on - 12 Jun 2004. 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.