Mark Johnson
USATT#: 26863
1897 1842
Alameda Open
- 26 Jul 2009
- 26 Jul 2009
This page explains how Mark Johnson (USATT# 26863)'s rating went from 1897 to 1842 at the Alameda Open held on - 26 Jul 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.