This page explains how Won Jin Choi (USATT# 74544)'s rating went from 2656 to 2612 at the Korean invitational Tournament held on 21 Oct 2023 - 22 Oct 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.