This page explains how Joon Lee (USATT# 216874)'s rating went from 1581 to 1572 at the IndyPong Monday League event from 6 Feb 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.