This page explains how Al L. Miller (USATT# 1551)'s rating went from 1817 to 1815 at the 1999 Los Angeles TT Open Champ held on - 11 Apr 1999. 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.