This page explains how Muhammad Abbasi (USATT# 266252)'s rating went from 1793 to 1880 at the HITTA Friday Night League event from 17 Sep 2016. 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.