This page explains how Kangjian Shao (USATT# 1173520)'s rating went from n/a to 1289 at the 2021 December Open @ Princeton Pong held on 4 Dec 2021 - 5 Dec 2021. 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.