This page explains how Alex Storm Piech (USATT# 201855)'s rating went from n/a to 609 at the MDTTC Tuesday/Friday League event from 21 Jun 2016. 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.