This page explains how Kostas Maciulis (USATT# 17554)'s rating went from 1194 to 1147 at the GVTTC Monday Night League event from 27 Feb 2006. 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.