This page explains how Salvatore Gionfriddo (USATT# 197010)'s rating went from 1505 to 1446 at the Austin Table Tennis League event from 2 Jan 2019. 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.