This page explains how Hao Ling (USATT# 219506)'s rating went from 1127 to 1098 at the Austin Table Tennis League event from 25 Oct 2017. 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.