Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2089 2076
Boston TTC
29 Sep 2015
29 Sep 2015
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2089 to 2076 at the Boston TTC event from 29 Sep 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.