Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
1897 1901
Waltham Double-Elimination Cha
- 3 Dec 1994
- 3 Dec 1994
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 1897 to 1901 at the Waltham Double-Elimination Cha held on - 3 Dec 1994. 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.