Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2124 2102
Waltham Sept Open RR
- 29 Sep 1996
- 29 Sep 1996
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2124 to 2102 at the Waltham Sept Open RR held on - 29 Sep 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.