This page explains how Yanyu Xie (USATT# 215584)'s rating went from 1533 to 1359 at the 2017 Triangle May "Upside Down" Open Tournament held on 20 May 2017 - 21 May 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.