This page explains how Cole Ely (USATT# 27786)'s rating went from 1578 to 1558 at the 2009 Wild Bill Hickok Shootout held on - 11 Jul 2009. 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.