This page explains how Tak Chun (tommy) Yip (USATT# 30469)'s rating went from n/a to 1892 at the The 4th Annual Willoughby Hill held on - 28 Sep 2003. The links below take you to pages that describe various aspects of the rating processor.

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.