Des Preston
USATT#: 73084
2157 2055
Boston TTC
30 Jan 2018
30 Jan 2018
This page explains how Des Preston (USATT# 73084)'s rating went from 2157 to 2055 at the Boston TTC event from 30 Jan 2018. 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.