This page explains how Dongheon Lee (USATT# 281766)'s rating went from n/a to 2497 at the Korean-Friendship-Challenge 2 held on 30 Nov 2023 - 30 Nov 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.