Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2120 2132
Boston TTC
26 Nov 2019
26 Nov 2019
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2120 to 2132 at the Boston TTC event from 26 Nov 2019. 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.