Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2113 2092
Boston TTC
13 Nov 2018
13 Nov 2018
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2113 to 2092 at the Boston TTC event from 13 Nov 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.