Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2056 2089
Boston TTC
11 Apr 2017
11 Apr 2017
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2056 to 2089 at the Boston TTC event from 11 Apr 2017. 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.