This page explains how Tue Nguyen (USATT# 280602)'s rating went from 1220 to 1215 at the Austin Table Tennis League event from 6 Dec 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.