This page explains how Melinda Shuhan Mao (USATT# 281309)'s rating went from 1539 to 1546 at the LATTA Butterfly Open December 2023 held on 10 Dec 2023 - 10 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.