Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2164 2172
Boston TTC
18 Sep 2018
18 Sep 2018
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2164 to 2172 at the Boston TTC event from 18 Sep 2018. 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.