This page explains how Olaf Hoerschelmann (USATT# 222340)'s rating went from 1308 to 1259 at the LRTTC Monthly Tournament League event from 9 Feb 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.