Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2075 2040
In the Red Open
- 25 Apr 1999
- 25 Apr 1999
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2075 to 2040 at the In the Red Open held on - 25 Apr 1999. 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.