This page explains how Andre Maronian (USATT# 56078)'s rating went from 1877 to 1889 at the 2012 Rochester New York Open held on - 26 Feb 2012. 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.