Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2204 2129
Boston TTC
2 Oct 2018
2 Oct 2018
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2204 to 2129 at the Boston TTC event from 2 Oct 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.