This page explains how Warren Lee (USATT# 130612)'s rating went from 1541 to 1548 at the LATTA Butterfly Open July 2023 held on 29 Jul 2023 - 29 Jul 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.