Des Preston
USATT#: 73084
2060 2050
Boston TTC
22 Oct 2019
22 Oct 2019
This page explains how Des Preston (USATT# 73084)'s rating went from 2060 to 2050 at the Boston TTC event from 22 Oct 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.