This page explains how Sam Hsieh (USATT# 124821)'s rating went from 1518 to 1538 at the SVTTC Sunday U2000 event from 5 Feb 2012. 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.