This page explains how Todd Wiederhold (USATT# 47899)'s rating went from 1579 to 1521 at the Texas Wesleyan University Open held on 14 Sep 2019 - 14 Sep 2019. 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.