This page explains how Derek Diepenhorst (USATT# 117595)'s rating went from n/a to 500 at the Holland Killerspin Table Tennis Club event from 7 Dec 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.