Des Preston
USATT#: 73084
2170 2169
Boston TTC
21 Feb 2017
21 Feb 2017
This page explains how Des Preston (USATT# 73084)'s rating went from 2170 to 2169 at the Boston TTC event from 21 Feb 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.