This page explains how Shahzad Nizamuddin (USATT# 216959)'s rating went from 1820 to 1801 at the Central Carolinas Super League event from 25 Mar 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.