This page explains how Samson Dubina (USATT# 9051)'s rating went from 2511 to 2505 at the Northern Kentucky Spring Open held on - 25 May 2008. 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.