This page explains how Karl Mikesell (USATT# 54298)'s rating went from 1492 to 1437 at the Schaumburg Christmas Open held on - 17 Dec 1994. 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.