This page explains how Seyed Jafarinejad (USATT# 71678)'s rating went from 1815 to 1790 at the Fremont Table Tennis Academy League event from 11 Feb 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.