Donald Duff
USATT#: 18627
1814 1890
North American Teams
- 30 Nov 2003
- 30 Nov 2003
This page explains how Donald Duff (USATT# 18627)'s rating went from 1814 to 1890 at the North American Teams held on - 30 Nov 2003. 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.