This page explains how John Traino (USATT# 17434)'s rating went from 1377 to 1327 at the Statesville Table Tennis League event from 11 Dec 2006. 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.