Donald C. Hayden
USATT#: 51994
1442 1439
Oakbrook Winter Open
- 14 Feb 1998
- 14 Feb 1998
This page explains how Donald C. Hayden (USATT# 51994)'s rating went from 1442 to 1439 at the Oakbrook Winter Open held on - 14 Feb 1998. 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.