This page explains how Zachary D Moore (USATT# 31868)'s rating went from 1861 to 1839 at the Austin Table Tennis League event from 29 Oct 2015. 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.