This page explains how Gerard J. Schreuders (USATT# 50104)'s rating went from 1520 to 1521 at the Statesville Table Tennis League event from 28 Nov 2011. 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.