This page explains how Harry Tan (USATT# 271147)'s rating went from 1478 to 1494 at the 2023 USATT California State Championships held on 7 Oct 2023 - 9 Oct 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.