This page explains how Roddy B. Lee (USATT# 47600)'s rating went from 1740 to 1683 at the SFFL April Player Series held on - 4 Apr 1998. 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.