This page explains how Mostafa Mansour (USATT# 271043)'s rating went from n/a to 626 at the Fremont Table Tennis Academy League event from 1 Aug 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.