This page explains how John Shen (USATT# 273516)'s rating went from 1895 to 1924 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.