Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2074 2093
Boston TTC
20 Jun 2017
20 Jun 2017
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2074 to 2093 at the Boston TTC event from 20 Jun 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.