This page explains how Aris Flores (USATT# 85965)'s rating went from 1620 to 1581 at the Los Angeles Table Tennis Association event from 21 Jul 2012. 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.