This page explains how Eric Purwaka (USATT# 926315)'s rating went from 1064 to 1039 at the Austin Table Tennis League event from 21 Nov 2016. 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.