This page explains how Marcin Motyka (USATT# 1173787)'s rating went from 1871 to 1858 at the LYTTC TTcup event from 6 Apr 2023. 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.