This page explains how Arseni Mouchinski (USATT# 1150994)'s rating went from 2000 to 1988 at the LYTTC Friday Pro League event from 29 Dec 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.