This page explains how Ricky Guan (USATT# 1177768)'s rating went from 1509 to 1534 at the HITTA Weekly League event from 2 Dec 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.