Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2129 2139
Boston TTC
9 Oct 2018
9 Oct 2018
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2129 to 2139 at the Boston TTC event from 9 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.