This page explains how Sihai Chen (USATT# 75555)'s rating went from 1448 to 1457 at the Mohawk Valley TTC League event from 31 Dec 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.