This page explains how Alex Osmanoff (USATT# 93496)'s rating went from 1409 to 1192 at the LYTTC Friday Pro League event from 13 Apr 2018. 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.