This page explains how Sunny Liu (USATT# 223264)'s rating went from 789 to 854 at the 2023 January Open @ Princeton Pong held on 7 Jan 2023 - 8 Jan 2023. 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.