Donald B. Hayes
USATT#: 50664
| Coach Level: Club | Certified Umpire
2135 2141
Boston TTC
13 Aug 2019
13 Aug 2019
This page explains how Donald B. Hayes (USATT# 50664)'s rating went from 2135 to 2141 at the Boston TTC event from 13 Aug 2019. 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.