This page explains how John Traino (USATT# 17434)'s rating went from 1389 to 1388 at the Statesville Table Tennis League event from 19 Dec 2005. 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.