Mark Johnson
USATT#: 26863
1539 1400
US Open
17 Dec 2019 - 21 Dec 2019
17 Dec 2019 - 21 Dec 2019
This page explains how Mark Johnson (USATT# 26863)'s rating went from 1539 to 1400 at the US Open held on 17 Dec 2019 - 21 Dec 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.