This page explains how Tak Chun (tommy) Yip (USATT# 30469)'s rating went from 1883 to 1860 at the Butterfly S&S October Open held on 21 Oct 2023 - 22 Oct 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.