Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2081 2074
Westford TTC June 2023 Open
11 Jun 2023 - 11 Jun 2023
11 Jun 2023 - 11 Jun 2023
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2081 to 2074 at the Westford TTC June 2023 Open held on 11 Jun 2023 - 11 Jun 2023. 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.