This page explains how Oto-Obong Akpan (USATT# 272293)'s rating went from 1355 to 1348 at the SJISC Weekly League nights event from 4 Oct 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.