Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2054 2045
Strike One President Open
- 25 Feb 1996
- 25 Feb 1996
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2054 to 2045 at the Strike One President Open held on - 25 Feb 1996. 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.