This page explains how Nison Aronov (USATT# 18889)'s rating went from 2402 to 2402 at the BTTC September Open held on - 19 Sep 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.