This page explains how Keiichi ShioKawa (USATT# 194372)'s rating went from 1812 to 1747 at the LATTA Butterfly Open May 2023 held on 20 May 2023 - 20 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.