This page explains how Arman Zhumagaliyev (USATT# 92135)'s rating went from 1889 to 1867 at the Houston Elite League event from 7 Sep 2018. 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.