Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2267 2130
2008 JOOLA American Teams Ope
- 30 Nov 2008
- 30 Nov 2008
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2267 to 2130 at the 2008 JOOLA American Teams Ope held on - 30 Nov 2008. 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.