This page explains how Marvin Karno (USATT# 22332)'s rating went from 1386 to 1356 at the LATTF event from 14 Mar 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.