This page explains how Chi-Sun Chui (USATT# 4879)'s rating went from 2330 to 2331 at the ASLT April 2023 Tournament held on 31 Mar 2023 - 2 Apr 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.