This page explains how Aurimas Zemaitaitis (USATT# 216168)'s rating went from 1637 to 1648 at the September Open held on 9 Sep 2017 - 9 Sep 2017. 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.