Mark Johnson
USATT#: 26863
1877 1947
2009 US Nationals
- 19 Dec 2009
- 19 Dec 2009
This page explains how Mark Johnson (USATT# 26863)'s rating went from 1877 to 1947 at the 2009 US Nationals held on - 19 Dec 2009. 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.