This page explains how James Winn (USATT# 60903)'s rating went from 1820 to 1645 at the Santa Fe Club Fall RR held on - 11 Nov 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.