This page explains how Tiequn Qiu (USATT# 83555)'s rating went from 1207 to 1214 at the Arizona Closed held on - 1 May 2011. 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.