This page explains how Marvin Karno (USATT# 22332)'s rating went from 1342 to 1348 at the LATTF event from 17 Feb 2010. 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.