This page explains how Madison Chao (USATT# 92066)'s rating went from 1399 to 1398 at the 2017 Aurora Cup held on 13 Jan 2017 - 15 Jan 2017. 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.