This page explains how Brian Tomlin (USATT# 229936)'s rating went from 1459 to 1452 at the 2023 Butterfly South Texas Open held on 21 Oct 2023 - 21 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.