This page explains how Oto-Obong Akpan (USATT# 272293)'s rating went from 1082 to 1082 at the Butterfly September Open @ Club SJISC held on 17 Sep 2022 - 17 Sep 2022. 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.