This page explains how Ali H Ammar (USATT# 264944)'s rating went from 1826 to 1835 at the Westchester 2021 December Open held on 29 Dec 2021 - 30 Dec 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.