This page explains how Kurtus Hsu (USATT# 98192)'s rating went from 649 to 628 at the MDTTC Tuesday/Friday League event from 5 Feb 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.