This page explains how Alex Kotlyar (USATT# 21222)'s rating went from 1689 to 1662 at the 2002 Indiana State Closed held on - 27 Apr 2002. 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.