Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2156 2164
Boston TTC
11 Sep 2018
11 Sep 2018
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2156 to 2164 at the Boston TTC event from 11 Sep 2018. 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.