David L. MacGregor
USATT#: 55325
1439 1392
Schaumburg Open
- 20 Jun 1998
- 20 Jun 1998
This page explains how David L. MacGregor (USATT# 55325)'s rating went from 1439 to 1392 at the Schaumburg Open held on - 20 Jun 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.