This page explains how Samuel D. Matossian (USATT# 26319)'s rating went from 1488 to 1397 at the 2016 Homenentmen Ararat Open held on 11 Jun 2016 - 12 Jun 2016. 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.