This page explains how Samson Dubina (USATT# 9051)'s rating went from 2419 to 2421 at the Strongsville Summer Open held on - 22 Aug 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.