Donald C. Hayden
USATT#: 51994
1218 1364
Grand Rapids TTC September Ope
- 30 Sep 1995
- 30 Sep 1995
This page explains how Donald C. Hayden (USATT# 51994)'s rating went from 1218 to 1364 at the Grand Rapids TTC September Ope held on - 30 Sep 1995. The links below take you to pages that describe various aspects of the rating processor.
Introduction
Initial Rating
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.