This page explains how Antonio Barbera (USATT# 270129)'s rating went from 1104 to 1090 at the 2022 US NATIONAL TABLE TENNIS CHAMPIONSHIPS held on 2 Jul 2022 - 7 Jul 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.