This page explains how Donald A. Young (USATT# 11356)'s rating went from 1865 to 1850 at the Wallt Stephens Memorial Open held on - 28 Oct 2001. 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.