Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2105 2101
Boston TTC
29 May 2018
29 May 2018
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2105 to 2101 at the Boston TTC event from 29 May 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.