This page explains how Danny Johnson (USATT# 275490)'s rating went from 1293 to 1121 at the Butterfly Spin & Smash June Open 2024 held on 21 Jun 2024 - 22 Jun 2024. 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.