Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2094 2103
Boston TTC
15 Aug 2017
15 Aug 2017
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2094 to 2103 at the Boston TTC event from 15 Aug 2017. 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.