This page explains how Samuel D. Matossian (USATT# 26319)'s rating went from 1283 to 1278 at the LATTF event from 27 Apr 2014. 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.