This page explains how Tigran Margaryan (USATT# 275342)'s rating went from 1265 to 1152 at the AZ PTTC Monday event from 7 Aug 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.