Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2136 2067
2005 US Nationals Championship
- 17 Dec 2005
- 17 Dec 2005
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2136 to 2067 at the 2005 US Nationals Championship held on - 17 Dec 2005. 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.