This page explains how Mark J. Hoffman (USATT# 24438)'s rating went from 1189 to 1247 at the Killerspin Open 2003 held on - 29 Dec 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.