This page explains how Karl-Josef Assenmacher (USATT# 25148)'s rating went from 2129 to 2044 at the Huntsman World Senior Games held on 9 Oct 2017 - 12 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.