This page explains how Antonious Naguib (USATT# 271744)'s rating went from 229 to 217 at the 888 League event from 14 Nov 2021. 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.