This page explains how Sergey Tsvor (USATT# 25053)'s rating went from 1623 to 1631 at the Sacramento Fall Open held on - 29 Oct 2005. 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.