This page explains how Amirabadi Abbas (USATT# 108228)'s rating went from 1030 to 1027 at the Austin Table Tennis League event from 12 Feb 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.