This page explains how Ali Malik (USATT# 215354)'s rating went from 1421 to 1393 at the Roslyn-Long Island Sports Center (LISC) League event from 23 Feb 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.