Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2110 2105
Boston TTC
18 Jul 2017
18 Jul 2017
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2110 to 2105 at the Boston TTC event from 18 Jul 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.