This page explains how James Yang (USATT# 271489)'s rating went from 1627 to 1627 at the Matchpoint TTC Friday 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.