This page explains how Eric Chen (USATT# 9433)'s rating went from 1317 to 1325 at the 2009 Rose City Open held on - 28 Jun 2009. 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.