Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2173 2110
Westford TTC October 2023 Open
8 Oct 2023 - 8 Oct 2023
8 Oct 2023 - 8 Oct 2023
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2173 to 2110 at the Westford TTC October 2023 Open held on 8 Oct 2023 - 8 Oct 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.