This page explains how Alexander Kuzmenko (USATT# 217219)'s rating went from 2016 to 1989 at the GLTTC FRIDAY 730pm League event from 20 Oct 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.