This page explains how Randall Medcalf (USATT# 64482)'s rating went from 2019 to 2054 at the Houston League event from 9 Apr 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.