This page explains how Robert K. Leatherwood (USATT# 7612)'s rating went from 1842 to 1863 at the Colorado Fall Open held on - 28 Oct 1995. 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.