This page explains how Chong Dao Huang (USATT# 928084)'s rating went from 1646 to 1640 at the Austin Table Tennis League event from 24 Jul 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.