This page explains how Jishan Liang (USATT# 86560)'s rating went from 2634 to 2613 at the Robopong December 2017 BTTC Open held on 15 Dec 2017 - 17 Dec 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.