This page explains how Osman Alhan (USATT# 1183705)'s rating went from 626 to 612 at the HITTA Weekly League event from 26 Apr 2024. 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.