This page explains how Jason Piech (USATT# 201854)'s rating went from 606 to 615 at the MDTTC Tuesday/Friday League event from 28 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.