Mark Johnson
USATT#: 26863
1561 1538
ICC - Advanced League
22 Jun 2019
22 Jun 2019
This page explains how Mark Johnson (USATT# 26863)'s rating went from 1561 to 1538 at the ICC - Advanced League event from 22 Jun 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.