This page explains how Lee Abraham (USATT# 213178)'s rating went from 1353 to 1553 at the 2017 Austin Fall Classic Round Robin held on 14 Oct 2017 - 14 Oct 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.