This page explains how Keyvan Farmanfarmaian (USATT# 270787)'s rating went from n/a to 615 at the Spttc Saturday Night League event from 26 Jun 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.