Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2081 2092
Waltham April RR
- 2 Apr 1995
- 2 Apr 1995
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2081 to 2092 at the Waltham April RR held on - 2 Apr 1995. 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.