This page explains how Robert K. Leatherwood (USATT# 7612)'s rating went from 1717 to 1715 at the 2003 CO Civil War (League) held on - 8 Mar 2003. 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.