Des Preston
USATT#: 73084
2162 2147
Boston TTC
28 Jan 2020
28 Jan 2020
This page explains how Des Preston (USATT# 73084)'s rating went from 2162 to 2147 at the Boston TTC event from 28 Jan 2020. 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.