This page explains how Chi-Sun Chui (USATT# 4879)'s rating went from 2341 to 2341 at the ARARAT OPEN 2023 held on 21 May 2023 - 21 May 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.