This page explains how John Nagel (USATT# 30131)'s rating went from 1610 to 1548 at the Foothills Celebrity Open Serie held on - 5 Aug 2006. 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.