This page explains how David sui ng Li (USATT# 1504)'s rating went from 1569 to 1571 at the Greenville Table Tennis League event from 5 Dec 2021. 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.