Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2154 2169
Boston TTC
7 Nov 2017
7 Nov 2017
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2154 to 2169 at the Boston TTC event from 7 Nov 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.