Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2114 2122
Boston TTC
31 Jan 2017
31 Jan 2017
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2114 to 2122 at the Boston TTC event from 31 Jan 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.