This page explains how Ameer Hossein Jafri (USATT# 1131709)'s rating went from 1667 to 1619 at the Westchester July 2023 Open held on 29 Jul 2023 - 30 Jul 2023. 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.