This page explains how Harold E. Fredrickson (USATT# 5900)'s rating went from 1430 to 1422 at the 1994 Tri-City Spring Open held on - 17 Apr 1994. 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.