This page explains how Weiliang Jordan Sun (USATT# 89073)'s rating went from 1193 to 1408 at the Champaign Butterfly Open Winter Giant RR held on - 9 Feb 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.