William W.H. Cheung
USATT#: 1728
| International Umpire
0 1502
Portland Open
- 20 Aug 1994
- 20 Aug 1994
This page explains how William W.H. Cheung (USATT# 1728)'s rating went from n/a to 1502 at the Portland Open held on - 20 Aug 1994. 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.