Ray A. Robertson
USATT#: 63884
1092 1131
2009 Summer Grand Canyon State
- 21 Jun 2009
- 21 Jun 2009
This page explains how Ray A. Robertson (USATT# 63884)'s rating went from 1092 to 1131 at the 2009 Summer Grand Canyon State held on - 21 Jun 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.