Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2101 2099
Boston TTC
9 Jun 2015
9 Jun 2015
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2101 to 2099 at the Boston TTC event from 9 Jun 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.