This page explains how Koji Ishida (USATT# 273023)'s rating went from 1446 to 1459 at the LYTTC Friday Pro League event from 20 Jan 2023. 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.