Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2113 2098
Boston TTC
24 Nov 2015
24 Nov 2015
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2113 to 2098 at the Boston TTC event from 24 Nov 2015. 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.