Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2068 2066
US Open
- 4 Jul 2004
- 4 Jul 2004
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2068 to 2066 at the US Open held on - 4 Jul 2004. 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.