This page explains how Zhanjian Luo (USATT# 22970)'s rating went from 1841 to 1816 at the QTTC March Open held on - 24 Mar 2013. 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.