Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2071 2154
Boston TTC
24 Oct 2017
24 Oct 2017
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2071 to 2154 at the Boston TTC event from 24 Oct 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.