Gregg Robertshaw
USATT#: 9501
| Coach Level: State | Certified Umpire
2211 2138
2009 JOOLA N. American Teams O
- 29 Nov 2009
- 29 Nov 2009
This page explains how Gregg Robertshaw (USATT# 9501)'s rating went from 2211 to 2138 at the 2009 JOOLA N. American Teams O held on - 29 Nov 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.