This page explains how Douglas C. Bakke (USATT# 60972)'s rating went from 1509 to 1521 at the Tucson Table Tennis Club League event from 12 Jan 2013. 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.