This page explains how Robert G. Hagerstrand (USATT# 59550)'s rating went from 1316 to 1264 at the Schaumburg $1110 February Open held on - 21 Feb 1998. 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.