This page explains how Weiliang Jordan Sun (USATT# 89073)'s rating went from 1408 to 1407 at the South Bend Open held on - 4 May 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.