This page explains how Rath Yin (USATT# 217197)'s rating went from 1849 to 1819 at the Austin Table Tennis League event from 24 Nov 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.