Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2170 2134
Boston TTC
19 Aug 2014
19 Aug 2014
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2170 to 2134 at the Boston TTC event from 19 Aug 2014. 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.