This page explains how Sung G. Yim (USATT# 63580)'s rating went from 2003 to 2001 at the Matchpoint TTC Friday League event from 21 Jan 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.