Irina Hellwig
USATT#: 11612
| International Umpire
1449 1437
US Nationals
- 21 Dec 1997
- 21 Dec 1997
This page explains how Irina Hellwig (USATT# 11612)'s rating went from 1449 to 1437 at the US Nationals held on - 21 Dec 1997. 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.