Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2081 2109
Boston TTC
10 Nov 2015
10 Nov 2015
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2081 to 2109 at the Boston TTC event from 10 Nov 2015. 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.