Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
1958 2039
2001 US Open 3
- 8 Jul 2001
- 8 Jul 2001
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 1958 to 2039 at the 2001 US Open 3 held on - 8 Jul 2001. 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.