This page explains how John Olsen (USATT# 8825)'s rating went from 2013 to 2014 at the 2015 Virginia State Table Tennis Championships at held on - 3 May 2015. 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.