This page explains how Chris Karrasch (USATT# 23151)'s rating went from 1212 to 1254 at the MATTC October Open held on - 16 Oct 2005. 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.