This page explains how Walt R. Blehm (USATT# 19421)'s rating went from 1181 to 1120 at the Meiklejohn North American Seniors Open held on - 3 Jun 2012. 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.