This page explains how Michael Diekema (USATT# 202300)'s rating went from 1070 to 1066 at the Butterfly Spin &Smash April Open held on 1 Apr 2022 - 3 Apr 2022. 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.