This page explains how Brian Doherty (USATT# 81487)'s rating went from 1321 to 1320 at the Austin Table Tennis League event from 21 Nov 2014. 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.